diff --git a/README.md b/README.md
index aa88f07..ad5384b 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ python3 app.py
 mediamtx ./data/mediamtx.yml
 ```
 
-回归测试：`python3 -m unittest -v test_app test_ptz` 和 `node --test test_live_player.js test_kinship.js test_calendar.js test_family_graph.js test_ui_logic.js`。测试使用临时数据库和模拟播放器，不连接真实设备。
+回归测试：`python3 -m unittest -v test_app test_ptz test_camera_settings` 和 `node --test test_live_player.js test_kinship.js test_calendar.js test_family_graph.js test_ui_logic.js`。测试使用临时数据库和模拟播放器，不连接真实设备。
 
 访问 `http://127.0.0.1:8790/`。后端配置变量：`VISION_BIND`、`VISION_PORT`、`VISION_DATA`、`VISION_RECORDINGS`；高清转码可用 `VISION_VAAPI_DEVICE` 指定渲染设备（默认 `/dev/dri/renderD128`）。HTTPS 反向代理场景可设 `VISION_SECURE_COOKIE=1`。当前管理 API 使用管理员与个人账号分权。
 
@@ -131,3 +131,34 @@ JSON 导出升级为格式 version 2，包含人物、关系和当前账号有
 - 新建、恢复亲生关系及修改人物出生日期时，已知父母出生日期必须早于子女；日期未知以及收养、继亲关系不据此推断或拒绝。
 - 退出或切换账号后，旧请求不得重新写入私有视图；过时的状态刷新不会覆盖较新的结果。共享浏览器标签页切换账号时，在下一次状态刷新或会话检查中清理前一账号的视图。
 - 日期表单按人物或记事分别校验，编辑记事不会清除另一张人物表单的去世日期。
+
+
+## 摄像机参数、版本留存与账号自助（v0.1.19）
+
+### 摄像机设置
+
+管理员在实时画面或镜头通道中点击“摄像机设置”。服务通过已保存的设备凭据读取能力，精确匹配当前镜头的主 / 子码流路径（包括查询参数）。不接受客户端提供的任意设备服务地址。
+
+- 显示设备型号、固件、镜头视频源及编码。图像设置作用于该物理镜头，主、子码流共用。
+- 按设备实际支持范围提供亮度、对比度、饱和度、锐度、日夜模式、背光补偿、宽动态及白平衡。
+- 主、子码流分别提供分辨率、帧率、码率上限、画质和关键帧间隔；未开放的参数不会出现。
+- 保留现有视频编码及设备扩展字段。有些设备使用 H264 兼容结构报告 H265，不能仅凭标准 Encoding 字段就改写编码。
+- 保存前重新读取、验证范围并检查参数版本，同一物理设备串行保存。保存后回读实际值，未确认或不一致会提示重新核对，不自动反复写入。
+- 修改码流可能短暂中断实时画面，并影响录像机收到的码流。当前设备参数写入仅管理员可用。
+- 双向对讲、自动跟踪、告警灯 / 警笛、画面翻转、隐私遮蔽、云录像、消息推送尚未接入；界面明确列出这些边界。设备宣告支持某个 ONVIF 服务不等于本系统已经实现该功能。
+
+协议依据：[ONVIF Imaging Service](https://www.onvif.org/specs/srv/img/ONVIF-Imaging-Service-Spec-v1606.pdf)、[ONVIF Media Service](https://www.onvif.org/specs/srv/media/ONVIF-Media-Service-Spec-v240.pdf)。本系统按设备返回的选项校验与设置，不依赖萤石云账号。
+
+### 家谱修改记录
+
+人物档案、亲属关系及记事详情都有历史入口。每次保存将修改前 / 后内容、操作者与时间、家谱版本号写入 `family_changes`，与实际记录一起提交。可以分页查阅、对照旧版并选择恢复；恢复会重新验证现有家谱约束，并生成新版本，不删除后续历史。不提供创建前的空版本恢复。
+
+历史包含曾撤回的内容，只对家谱编辑者和管理员开放。读取版本后若家谱发生变化，恢复会拒绝并要求重新读取。历史从本版本开始记录；升级前的内容会在下一次修改时作为“修改前”保存。历史属于私有数据库，不进入公共源码或普通家谱 JSON 导出。
+
+### 我的密码
+
+所有登录账号都可通过侧栏“修改我的密码”填写当前密码、新密码及确认。服务器验证当前密码，并限制连续错误次数。成功后撤销该账号全部登录会话，其他账号不受影响；账号角色和人物关联不变。系统不会把密码记录到操作日志。
+
+### 并发与数据一致性
+
+设备对象的校验与保存串行执行；镜头数量限制不能被同时提交绕过。摄像头对象移动空间时，所有镜头归属在同一数据库事务更新。录像机地址或账号更新后，关联通道读取最新端点。无效对象编号、错误 Origin 和非法地址类型会返回明确错误。
diff --git a/VERSION b/VERSION
index f8bc4c6..d8a023e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1.18
+0.1.19
diff --git a/app.py b/app.py
index 4344e84..c066e20 100644
--- a/app.py
+++ b/app.py
@@ -3,6 +3,8 @@ import base64
 import concurrent.futures
 import datetime as dt
 import hashlib
+import functools
+import camera_settings
 import hmac
 import http.client
 import http.cookies
@@ -126,6 +128,8 @@ def integer(value, lo, hi):
 
 def host_address(value):
     try:
+        if not isinstance(value, str):
+            raise ValueError()
         ip = ipaddress.ip_address(value)
         if ip.version != 4 or ip.is_global or ip.is_loopback or ip.is_multicast or ip.is_unspecified or ip.is_reserved:
             raise ValueError()
@@ -138,10 +142,28 @@ SITE_FIELDS = ('name', 'province', 'city', 'district', 'street', 'community', 'o
                'building', 'unit', 'floor', 'door', 'address', 'note')
 
 
+def serialized_save(function):
+    @functools.wraps(function)
+    def save(body):
+        with LOCK:
+            return function(body)
+    return save
+
+
+def object_key(table, body):
+    key = body.get('id', '')
+    if key in ('', None):
+        return secrets.token_hex(8)
+    if not isinstance(key, str) or not re.fullmatch('[a-f0-9]{16}', key):
+        raise Problem('对象编号不正确')
+    if not get_object(table, key):
+        raise Problem('对象不存在，请重新载入', 404)
+    return key
+
+
+@serialized_save
 def save_site(body):
-    key = body.get('id') or secrets.token_hex(8)
-    if not re.fullmatch('[a-f0-9]{16}', key):
-        raise Problem('空间编号不正确')
+    key = object_key('sites', body)
     item = {k: clean_text(body.get(k, ''), 240 if k in ('address', 'note') else 100,
                           required=k == 'name') for k in SITE_FIELDS}
     item.update(id=key, kind=body.get('kind', 'home'))
@@ -152,10 +174,9 @@ def save_site(body):
     return item
 
 
+@serialized_save
 def save_camera(body):
-    key = body.get('id') or secrets.token_hex(8)
-    if not re.fullmatch('[a-f0-9]{16}', key):
-        raise Problem('设备编号不正确')
+    key = object_key('cameras', body)
     old = get_object('cameras', key) or {}
     item = {k: clean_text(body.get(k, ''), 120, required=k == 'name')
             for k in ('name', 'point', 'username', 'model')}
@@ -202,10 +223,9 @@ def save_camera(body):
     return public_camera(item)
 
 
+@serialized_save
 def save_asset(body):
-    key = body.get('id') or secrets.token_hex(8)
-    if not re.fullmatch('[a-f0-9]{16}', key):
-        raise Problem('对象编号不正确')
+    key = object_key('assets', body)
     site = body.get('siteId')
     if not get_object('sites', site):
         raise Problem('请选择所属空间')
@@ -215,19 +235,18 @@ def save_asset(body):
     attached = [c for c in objects('cameras') if c.get('assetId') == key]
     if len(attached) > item['lensCount']:
         raise Problem('镜头数不能小于已经建立的通道数')
-    with LOCK:
-        save_object('assets', item)
+    with DB:
+        DB.execute('INSERT OR REPLACE INTO assets VALUES (?,?)', (key, json.dumps(item)))
         for c in attached:
             c['siteId'] = site
-            save_object('cameras', c)
+            DB.execute('UPDATE cameras SET body=? WHERE id=?', (json.dumps(c), c['id']))
     audit('保存摄像头对象', item['name'])
     return item
 
 
+@serialized_save
 def save_recorder(body):
-    key = body.get('id') or secrets.token_hex(8)
-    if not re.fullmatch('[a-f0-9]{16}', key):
-        raise Problem('录像机编号不正确')
+    key = object_key('recorders', body)
     old = get_object('recorders', key) or {}
     item = {k: clean_text(body.get(k, ''), 120, required=k == 'name')
             for k in ('name', 'brand', 'model', 'username')}
@@ -249,7 +268,13 @@ def save_recorder(body):
 
 
 def public_camera(c):
-    return {**{k: v for k, v in c.items() if k != 'password'}, 'passwordConfigured': bool(c['password'])}
+    result = {**{k: v for k, v in c.items() if k != 'password'}, 'passwordConfigured': bool(c.get('password'))}
+    if c.get('sourceKind') == 'recorder':
+        recorder = get_object('recorders', c.get('recorderId'))
+        if recorder:
+            result.update({k: recorder[k] for k in ('host', 'port', 'username')})
+            result['passwordConfigured'] = bool(recorder.get('password'))
+    return result
 
 
 def stream_name(c, quality='main'):
@@ -512,8 +537,14 @@ class Handler(BaseHTTPRequestHandler):
 
     def validate_origin(self):
         origin = self.headers.get('Origin')
-        if origin and url.urlsplit(origin).netloc != self.headers.get('Host'):
-            raise Problem('请从系统页面提交操作', 403)
+        if origin:
+            try:
+                parsed = url.urlsplit(origin)
+                valid = parsed.scheme in ('http', 'https') and parsed.netloc == self.headers.get('Host')
+            except ValueError:
+                valid = False
+            if not valid:
+                raise Problem('请从系统页面提交操作', 403)
 
     def login(self, data, setup=False):
         ip = self.client_address[0]
@@ -564,13 +595,29 @@ class Handler(BaseHTTPRequestHandler):
                 self.login(data, path == '/api/setup')
                 return
             self.require_auth()
-            if path not in ('/api/logout', '/api/family/person', '/api/family/link', '/api/family/event', '/api/ptz'):
+            if path not in ('/api/logout', '/api/account/password', '/api/family/restore',
+                            '/api/family/person', '/api/family/link', '/api/family/event', '/api/ptz'):
                 self.require_admin()
             if path == '/api/logout':
                 with LOCK:
                     DB.execute('DELETE FROM sessions WHERE hash=?', (hashlib.sha256(self.token().encode()).hexdigest(),))
                     DB.commit()
                 self.answer({'ok': True}, cookie='vision=; Path=/; Max-Age=0; HttpOnly; SameSite=Strict')
+            elif path == '/api/account/password':
+                result = ACCOUNTS.change_password(data, self.user)
+                self.answer(result, cookie='vision=; Path=/; Max-Age=0; HttpOnly; SameSite=Strict')
+            elif path == '/api/family/restore':
+                self.answer(FAMILY.restore(data, self.user))
+            elif path == '/api/camera/settings':
+                c = ACCOUNTS.camera(self.user, get_object('cameras', data.get('camera')))
+                try:
+                    result = camera_settings.CONTROLLER.save(c, data)
+                except ValueError as e:
+                    raise Problem(str(e))
+                except Exception:
+                    raise Problem('设备保存请求未确认，可能已经生效；请重新读取参数后核对，勿反复提交', 502)
+                audit('修改摄像机参数 · ' + data['section'], c['name'] + ' / ' + self.user['username'])
+                self.answer(result)
             elif path == '/api/ptz':
                 c = ACCOUNTS.control(self.user, get_object('cameras', data.get('camera')))
                 try:
@@ -741,6 +788,23 @@ class Handler(BaseHTTPRequestHandler):
                     self.answer(result)
                 elif path == '/api/family':
                     self.answer(FAMILY.snapshot(self.user))
+                elif path == '/api/camera/settings':
+                    self.require_admin()
+                    c = ACCOUNTS.camera(self.user, get_object('cameras', query.get('camera')))
+                    try:
+                        result, _ = camera_settings.CONTROLLER.read(c, query.get('quality', 'main'))
+                    except ValueError as e:
+                        raise Problem(str(e))
+                    except Exception:
+                        raise Problem('读取摄像机参数失败，请检查连接、设备账号或 ONVIF 服务', 502)
+                    self.answer(result)
+                elif path in ('/api/family/history', '/api/family/change'):
+                    try:
+                        number = int(query['before' if path.endswith('history') else 'revision']) if ('before' if path.endswith('history') else 'revision') in query else None
+                    except ValueError:
+                        raise Problem('修改记录编号不正确')
+                    self.answer(FAMILY.history(self.user, query.get('kind'), query.get('id'), number)
+                                if path.endswith('history') else FAMILY.change(self.user, number))
                 elif path == '/api/audit':
                     self.require_admin()
                     with LOCK:
@@ -791,6 +855,8 @@ class Handler(BaseHTTPRequestHandler):
                          '/family-graph.js': 'family-graph.js', '/family-map.js': 'family-map.js',
                          '/family-map.css': 'family-map.css',
                          '/family-events.js': 'family-events.js',
+                         '/family-history.js': 'family-history.js',
+                         '/camera-settings.js': 'camera-settings.js',
                          '/monitor.js': 'monitor.js', '/calendar.js': 'calendar.js', '/date-fields.js': 'date-fields.js',
                          '/zhao-icon.png': 'zhao-icon.png',
                          '/vendor/hls.min.js': 'vendor/hls.min.js'}
diff --git a/camera_settings.py b/camera_settings.py
new file mode 100644
index 0000000..7e2bfb5
--- /dev/null
+++ b/camera_settings.py
@@ -0,0 +1,225 @@
+"""Capability-driven, per-lens ONVIF settings. Never accepts an endpoint from a client."""
+import copy
+import hashlib
+import json
+import math
+import threading
+import urllib.parse as url
+import xml.etree.ElementTree as ET
+from xml.sax.saxutils import escape
+import onvif
+
+IMAGING = 'http://www.onvif.org/ver20/imaging/wsdl'
+T = '{' + onvif.SCHEMA + '}'
+M = '{' + onvif.MEDIA + '}'
+I = '{' + IMAGING + '}'
+IMAGE_FIELDS = {
+    'brightness': ('Brightness', 'Brightness', '亮度'),
+    'contrast': ('Contrast', 'Contrast', '对比度'),
+    'saturation': ('ColorSaturation', 'ColorSaturation', '饱和度'),
+    'sharpness': ('Sharpness', 'Sharpness', '锐度'),
+    'dayNight': ('IrCutFilter', 'IrCutFilterModes', '日夜模式'),
+    'backlight': ('BacklightCompensation/Mode', 'BacklightCompensation/Mode', '背光补偿'),
+    'wdr': ('WideDynamicRange/Mode', 'WideDynamicRange/Mode', '宽动态'),
+    'wdrLevel': ('WideDynamicRange/Level', 'WideDynamicRange/Level', '宽动态强度'),
+    'whiteBalance': ('WhiteBalance/Mode', 'WhiteBalance/Mode', '白平衡'),
+}
+ENUMS = {'dayNight': ('ON', 'OFF', 'AUTO'), 'backlight': ('ON', 'OFF'),
+         'wdr': ('ON', 'OFF'), 'whiteBalance': ('AUTO', 'MANUAL')}
+VIDEO_FIELDS = {'fps': 'RateControl/FrameRateLimit', 'bitrate': 'RateControl/BitrateLimit',
+                'quality': 'Quality', 'gop': 'H264/GovLength'}
+
+
+def path(value):
+    return '/'.join(T + part for part in value.split('/'))
+
+
+def number(value):
+    try:
+        result = float(value)
+        return result if math.isfinite(result) else None
+    except (TypeError, ValueError):
+        return None
+
+
+def limits(root, name):
+    if root is None:
+        return None
+    minimum, maximum = number(root.findtext(path(name + '/Min'))), number(root.findtext(path(name + '/Max')))
+    return dict(min=minimum, max=maximum) if minimum is not None and maximum is not None and minimum <= maximum else None
+
+
+def uri_path(value):
+    parsed = url.urlsplit(value)
+    return parsed.path, sorted(url.parse_qsl(parsed.query, keep_blank_values=True))
+
+
+class Settings:
+    def __init__(self):
+        self.guard = threading.Lock()
+        self.locks = {}
+
+    def call(self, camera, endpoint, namespace, operation, body=''):
+        return onvif.request(camera['host'], endpoint[0], endpoint[1], namespace, operation,
+                             body, camera['username'], camera['password'])
+
+    @staticmethod
+    def endpoint(camera, address):
+        parsed = url.urlsplit(address or '')
+        if parsed.scheme != 'http' or parsed.hostname != camera['host'] or parsed.username or parsed.password:
+            raise ValueError('设备返回了不匹配的服务地址')
+        return parsed.port or 80, parsed.path + ('?' + parsed.query if parsed.query else '')
+
+    def discover(self, camera, quality):
+        if camera.get('sourceKind', 'direct') != 'direct':
+            raise ValueError('摄像机参数需要直连摄像头；录像机通道请在录像机中配置')
+        if not camera.get('enabled'):
+            raise ValueError('请先启用这个镜头通道')
+        if quality not in ('main', 'sub'):
+            raise ValueError('请选择主码流或子码流')
+        device = (camera.get('onvifPort', 80), '/onvif/device_service')
+        caps = self.call(camera, device, onvif.DEVICE, 'GetCapabilities', '<m:Category>All</m:Category>')
+        services = {}
+        for name in ('Media', 'Imaging', 'PTZ', 'Events', 'Recording', 'Replay'):
+            address = caps.findtext('.//' + T + name + '/' + T + 'XAddr')
+            if address:
+                services[name] = self.endpoint(camera, address)
+        if 'Media' not in services:
+            raise ValueError('设备没有提供媒体配置服务')
+        profiles = self.call(camera, services['Media'], onvif.MEDIA, 'GetProfiles')
+        wanted = camera['mainPath' if quality == 'main' else 'subPath']
+        selected = None
+        # Exact path AND query matching prevents selecting the other lens on shared paths.
+        for profile in profiles.findall('.//' + M + 'Profiles')[:16]:
+            token = profile.get('token', '')
+            content = ('<m:StreamSetup><tt:Stream>RTP-Unicast</tt:Stream><tt:Transport><tt:Protocol>RTSP</tt:Protocol>'
+                       '</tt:Transport></m:StreamSetup><m:ProfileToken>' + escape(token) + '</m:ProfileToken>')
+            response = self.call(camera, services['Media'], onvif.MEDIA, 'GetStreamUri', content)
+            uri = response.findtext('.//' + T + 'Uri')
+            if uri and url.urlsplit(uri).hostname == camera['host'] and uri_path(uri) == uri_path(wanted):
+                selected = profile
+                break
+        if selected is None:
+            raise ValueError('未找到与当前镜头及码流路径精确匹配的配置，请先核对通道')
+        source = selected.findtext(path('VideoSourceConfiguration/SourceToken'))
+        encoder = selected.find(T + 'VideoEncoderConfiguration')
+        if not source or encoder is None:
+            raise ValueError('设备没有返回镜头或编码器配置')
+        return dict(device=device, services=services, source=source, profile=selected.get('token'), encoder=encoder)
+
+    def read(self, camera, quality='main'):
+        info = self.discover(camera, quality)
+        return self.details(camera, info), info
+
+    def details(self, camera, info):
+        result = dict(profile=info['profile'], source=info['source'], device={}, imaging={}, video={}, notes=[],
+                      advertisedServices=list(info['services']))
+        try:
+            device = self.call(camera, info['device'], onvif.DEVICE, 'GetDeviceInformation')
+            result['device'] = {key: device.findtext('.//{' + onvif.DEVICE + '}' + key, '')
+                                for key in ('Manufacturer', 'Model', 'FirmwareVersion', 'HardwareId')}
+        except Exception:
+            result['notes'].append('设备型号读取失败，可重试')
+        encoder = info['encoder']
+        values = {key: number(encoder.findtext(path(field))) for key, field in VIDEO_FIELDS.items()}
+        values['resolution'] = encoder.findtext(path('Resolution/Width'), '') + 'x' + encoder.findtext(path('Resolution/Height'), '')
+        codec = encoder.get('encoding') or encoder.findtext(T + 'Encoding', '')
+        result['video'] = dict(values=values, options={}, codec=codec)
+        try:
+            body = '<m:ConfigurationToken>' + escape(encoder.get('token', '')) + '</m:ConfigurationToken>'
+            opts = self.call(camera, info['services']['Media'], onvif.MEDIA, 'GetVideoEncoderConfigurationOptions', body).find('.//' + M + 'Options')
+            # Some EZVIZ devices expose H265 through the H264 compatibility schema.
+            # Keep the entire original XML (including vendor encoding attribute) when writing.
+            schema_codec = encoder.findtext(T + 'Encoding', '')
+            if schema_codec not in ('H264', 'MPEG4', 'JPEG'):
+                raise ValueError('unsupported encoding schema')
+            codec_opts = opts.find(T + schema_codec)
+            for key, field in [('fps', 'FrameRateRange'), ('gop', 'GovLengthRange')]:
+                limit = limits(codec_opts, field)
+                if limit and values[key] is not None:result['video']['options'][key] = limit
+            bitrate = limits(opts, 'Extension/' + schema_codec + '/BitrateRange')
+            quality = limits(opts, 'QualityRange')
+            if bitrate and values['bitrate'] is not None:result['video']['options']['bitrate'] = bitrate
+            if quality and values['quality'] is not None:result['video']['options']['quality'] = quality
+            resolutions = [r.findtext(T + 'Width', '') + 'x' + r.findtext(T + 'Height', '')
+                           for r in codec_opts.findall(T + 'ResolutionsAvailable')]
+            if resolutions:result['video']['options']['resolution'] = {'choices': list(dict.fromkeys(resolutions))}
+        except Exception:
+            result['notes'].append('码流可调范围读取失败，暂不可修改码流参数')
+            result['video']['options'] = {}
+        if 'Imaging' in info['services']:
+            try:
+                body = '<m:VideoSourceToken>' + escape(info['source']) + '</m:VideoSourceToken>'
+                settings = self.call(camera, info['services']['Imaging'], IMAGING, 'GetImagingSettings', body).find('.//' + I + 'ImagingSettings')
+                options = self.call(camera, info['services']['Imaging'], IMAGING, 'GetOptions', body).find('.//' + I + 'ImagingOptions')
+                if settings is None or options is None:raise ValueError('missing imaging response')
+                info['imagingXML'] = settings
+                for key, (field, option, label) in IMAGE_FIELDS.items():
+                    value = settings.findtext(path(field))
+                    if value is None:continue
+                    if key in ENUMS:
+                        choices = [v.text for v in options.findall(path(option)) if v.text in ENUMS[key]]
+                        rule = {'choices': list(dict.fromkeys(choices))} if choices else None
+                    else:
+                        value, rule = number(value), limits(options, option)
+                    if rule and value is not None:result['imaging'][key] = dict(value=value, label=label, **rule)
+            except Exception:
+                result['notes'].append('图像参数读取失败或设备未开放，暂不可修改图像参数')
+        else:
+            result['notes'].append('设备未开放图像调节服务')
+        fingerprint = dict(source=info['source'], profile=info['profile'], encoder=encoder.get('token'),
+                           imaging=result['imaging'], video=result['video'])
+        result['revision'] = hashlib.sha256(json.dumps(fingerprint, sort_keys=True).encode()).hexdigest()
+        return result
+
+    @staticmethod
+    def validate(values, rules, integer_fields=()):
+        if not isinstance(values, dict) or not values or any(k not in rules for k in values):
+            raise ValueError('提交的参数未由设备开放，或没有需要保存的参数')
+        for key, value in values.items():
+            rule = rules[key]
+            if 'choices' in rule:
+                if not isinstance(value, str) or value not in rule['choices']:raise ValueError('参数选项不受设备支持')
+            elif (type(value) not in (int, float) or not math.isfinite(value) or not rule['min'] <= value <= rule['max']
+                  or (key in integer_fields and int(value) != value)):
+                raise ValueError('参数超出设备允许范围')
+
+    def save(self, camera, data):
+        key = (camera['host'], camera.get('onvifPort', 80))
+        with self.guard:lock = self.locks.setdefault(key, threading.Lock())
+        if not lock.acquire(blocking=False):raise ValueError('这台摄像头正在保存参数，请稍后重试')
+        try:
+            current, info = self.read(camera, data.get('quality', 'main'))
+            if data.get('revision') != current['revision']:
+                raise ValueError('设备参数已变化，请重新读取后再修改')
+            section, values = data.get('section'), data.get('values')
+            if section == 'imaging':
+                self.validate(values, current['imaging'])
+                settings = copy.deepcopy(info['imagingXML'])
+                for key, value in values.items():settings.find(path(IMAGE_FIELDS[key][0])).text = str(value)
+                body = '<m:VideoSourceToken>' + escape(info['source']) + '</m:VideoSourceToken>' + ET.tostring(settings, encoding='unicode') + '<m:ForcePersistence>true</m:ForcePersistence>'
+                endpoint, namespace, operation = info['services']['Imaging'], IMAGING, 'SetImagingSettings'
+            elif section == 'video':
+                self.validate(values, current['video']['options'], ('fps', 'bitrate', 'gop'))
+                settings = copy.deepcopy(info['encoder']);settings.tag = M + 'Configuration'
+                for key, value in values.items():
+                    if key == 'resolution':
+                        for field, size in zip(('Width', 'Height'), value.split('x')):settings.find(path('Resolution/' + field)).text = size
+                    else:settings.find(path(VIDEO_FIELDS[key])).text = str(int(value) if key in ('fps', 'bitrate', 'gop') else value)
+                body = ET.tostring(settings, encoding='unicode') + '<m:ForcePersistence>true</m:ForcePersistence>'
+                endpoint, namespace, operation = info['services']['Media'], onvif.MEDIA, 'SetVideoEncoderConfiguration'
+            else:raise ValueError('请选择图像或码流设置')
+            self.call(camera, endpoint, namespace, operation, body)
+            try:
+                fresh, _ = self.read(camera, data.get('quality', 'main'))
+                actual = {k: v['value'] for k, v in fresh['imaging'].items()} if section == 'imaging' else fresh['video']['values']
+                confirmed = all(actual.get(k) == v for k, v in values.items())
+                return dict(ok=True, verified=confirmed, settings=fresh,
+                            message='设备已保存并回读确认' if confirmed else '设备已响应，但回读值与提交值不同，请核对设备实际参数')
+            except Exception:
+                return dict(ok=True, verified=False, settings=None, message='设备已响应，暂未读回参数；请重新读取确认，不要反复提交')
+        finally:
+            lock.release()
+
+
+CONTROLLER = Settings()
diff --git a/genealogy.py b/genealogy.py
index 871b4f8..882d0f2 100644
--- a/genealogy.py
+++ b/genealogy.py
@@ -15,6 +15,11 @@ class Family:
             CREATE TABLE IF NOT EXISTS people (id TEXT PRIMARY KEY, body TEXT NOT NULL);
             CREATE TABLE IF NOT EXISTS family_links (id TEXT PRIMARY KEY, body TEXT NOT NULL);
             CREATE TABLE IF NOT EXISTS family_events (id TEXT PRIMARY KEY, body TEXT NOT NULL);
+            CREATE TABLE IF NOT EXISTS family_changes (
+                revision INTEGER PRIMARY KEY, kind TEXT NOT NULL, target_id TEXT NOT NULL,
+                before_json TEXT, after_json TEXT NOT NULL, actor TEXT NOT NULL,
+                at TEXT NOT NULL, restored_from INTEGER);
+            CREATE INDEX IF NOT EXISTS family_changes_target ON family_changes(kind,target_id,revision);
             ''')
             self.a.DB.commit()
 
@@ -33,7 +38,7 @@ class Family:
                     'canEdit': can_edit,
                     'selfId': user.get('personId', '')}
 
-    def save(self, kind, data, user):
+    def save(self, kind, data, user, restored_from=None):
         self.authorize(user, True)
         a = self.a
         with a.LOCK:
@@ -57,12 +62,60 @@ class Family:
                 elif item['status'] == 'published':
                     item['publishedAt'] = item['updatedAt']
             # Revision and record are committed together, so concurrent forms cannot overwrite silently.
-            a.DB.execute('INSERT OR REPLACE INTO ' + table + ' VALUES (?,?)', (item['id'], json.dumps(item)))
-            a.DB.execute('INSERT OR REPLACE INTO settings VALUES (?,?)', ('familyRevision', json.dumps(revision + 1)))
-            a.DB.commit()
+            with a.DB:
+                a.DB.execute('INSERT OR REPLACE INTO ' + table + ' VALUES (?,?)', (item['id'], json.dumps(item)))
+                a.DB.execute('INSERT OR REPLACE INTO settings VALUES (?,?)', ('familyRevision', json.dumps(revision + 1)))
+                a.DB.execute('INSERT INTO family_changes VALUES (?,?,?,?,?,?,?,?)',
+                             (revision + 1, kind, item['id'], json.dumps(old) if old else None,
+                              json.dumps(item), user['username'], item['updatedAt'], restored_from))
             a.audit({'person': '更新家谱人物', 'link': '更新家谱关系', 'event': '更新家族记事'}[kind], user['username'])
             return {'item': item, 'revision': revision + 1}
 
+    def history(self, user, kind, target_id, before=None):
+        # Previous drafts and withdrawn text are visible only to family editors.
+        self.authorize(user, True)
+        a = self.a
+        table = {'person': 'people', 'link': 'family_links', 'event': 'family_events'}.get(kind)
+        with a.LOCK:
+            if not table or not a.get_object(table, target_id):
+                raise a.Problem('家谱记录不存在', 404)
+            if before is not None:
+                a.integer(before, 1, 2**53 - 1)
+            rows = a.DB.execute('SELECT * FROM family_changes WHERE kind=? AND target_id=? AND revision<? '
+                                'ORDER BY revision DESC LIMIT 21', (kind, target_id, before or 2**53 - 1)).fetchall()
+            items = []
+            for row in rows[:20]:
+                old, new = json.loads(row['before_json'] or '{}'), json.loads(row['after_json'])
+                fields = [k for k in new if k not in ('id', 'updatedAt', 'updatedBy', 'createdAt', 'createdBy', 'publishedAt')
+                          and old.get(k) != new[k]]
+                items.append(dict(revision=row['revision'], at=row['at'], actor=row['actor'], fields=fields,
+                                  created=row['before_json'] is None, restoredFrom=row['restored_from']))
+            return dict(items=items, nextBefore=items[-1]['revision'] if len(rows) > 20 else None,
+                        revision=a.setting('familyRevision', 0))
+
+    def change(self, user, change_revision):
+        self.authorize(user, True)
+        self.a.integer(change_revision, 1, 2**53 - 1)
+        with self.a.LOCK:
+            row = self.a.DB.execute('SELECT * FROM family_changes WHERE revision=?', (change_revision,)).fetchone()
+            if not row:
+                raise self.a.Problem('修改记录不存在', 404)
+            return dict(revision=row['revision'], kind=row['kind'], targetId=row['target_id'],
+                        before=json.loads(row['before_json']) if row['before_json'] else None,
+                        after=json.loads(row['after_json']), at=row['at'], actor=row['actor'])
+
+    def restore(self, data, user):
+        self.authorize(user, True)
+        with self.a.LOCK:
+            change = self.change(user, data.get('changeRevision'))
+            side = data.get('side')
+            if side not in ('before', 'after') or change[side] is None:
+                raise self.a.Problem('请选择有效的历史版本；创建前没有可恢复的内容')
+            # Reuse all current relationship/date/publication validation. Restore is a new edit,
+            # not an overwrite of history or a rollback of other people's records.
+            return self.save(change['kind'], dict(change[side], revision=data.get('revision')),
+                             user, restored_from=change['revision'])
+
     def event(self, data, old):
         a = self.a
         item = {'id': old['id'] if old else secrets.token_hex(8)}
diff --git a/identity.py b/identity.py
index e7a7039..f495392 100644
--- a/identity.py
+++ b/identity.py
@@ -4,11 +4,13 @@ import hmac
 import json
 import re
 import secrets
+import time
 
 
 class Accounts:
     def __init__(self, app):
         self.a = app
+        self.password_attempts = {}
 
     def initialize(self):
         a = self.a
@@ -99,6 +101,30 @@ class Accounts:
             a.audit('更新账号' if old else '建立账号', username)
             return self.public(user)
 
+    def change_password(self, data, actor):
+        a = self.a
+        with a.LOCK:
+            current = a.get_object('users', actor['id'])
+            if not current or current['disabled']:
+                raise a.Problem('请重新登录', 401)
+            now = time.time()
+            self.password_attempts = {k: v for k, v in self.password_attempts.items() if v[1] > now}
+            count, expiry = self.password_attempts.get(current['id'], (0, now + 900))
+            if count >= 8:
+                raise a.Problem('当前密码尝试次数过多，请 15 分钟后重试', 429)
+            if not self.verify(current['username'], data.get('currentPassword')):
+                self.password_attempts[current['id']] = (count + 1, expiry)
+                raise a.Problem('当前密码不正确', 403)
+            if data.get('newPassword') == data.get('currentPassword'):
+                raise a.Problem('新密码不能与当前密码相同')
+            credentials = self.password(data.get('newPassword'))
+            with a.DB:
+                a.DB.execute('UPDATE users SET body=? WHERE id=?', (json.dumps(dict(current, **credentials)), current['id']))
+                a.DB.execute('DELETE FROM sessions WHERE user_id=?', (current['id'],))
+            self.password_attempts.pop(current['id'], None)
+            a.audit('本人修改密码', current['username'])
+            return {'ok': True}
+
     def camera(self, user, camera):
         if not camera:
             raise self.a.Problem('摄像头不存在', 404)
diff --git a/onvif.py b/onvif.py
index 4a61a68..d147db0 100644
--- a/onvif.py
+++ b/onvif.py
@@ -13,6 +13,12 @@ MEDIA = 'http://www.onvif.org/ver10/media/wsdl'
 SCHEMA = 'http://www.onvif.org/ver10/schema'
 
 
+class NoRedirect(urllib.request.HTTPRedirectHandler):
+    def redirect_request(self, req, fp, code, msg, headers, newurl):
+        # Camera services must stay on the validated device endpoint.
+        return None
+
+
 def request(host, port, endpoint, namespace, operation, content, username, password):
     created = dt.datetime.now(dt.timezone.utc).strftime('%Y-%m-%dT%H:%M:%SZ')
     nonce = secrets.token_bytes(16)
@@ -30,7 +36,7 @@ def request(host, port, endpoint, namespace, operation, content, username, passw
     target = 'http://' + host + ':' + str(port) + endpoint
     passwords = urllib.request.HTTPPasswordMgrWithDefaultRealm()
     passwords.add_password(None, target, username, password)
-    opener = urllib.request.build_opener(urllib.request.ProxyHandler({}), urllib.request.HTTPDigestAuthHandler(passwords))
+    opener = urllib.request.build_opener(urllib.request.ProxyHandler({}), NoRedirect(), urllib.request.HTTPDigestAuthHandler(passwords))
     req = urllib.request.Request(target, data=envelope.encode(), headers={
         'Content-Type': 'application/soap+xml; charset=utf-8; action="' + namespace + '/' + operation + '"'})
     with opener.open(req, timeout=5) as response:
diff --git a/ptz.py b/ptz.py
index 732df75..76a6ad3 100644
--- a/ptz.py
+++ b/ptz.py
@@ -53,7 +53,9 @@ class Controller:
                 body = '<m:StreamSetup><tt:Stream>RTP-Unicast</tt:Stream><tt:Transport><tt:Protocol>RTSP</tt:Protocol></tt:Transport></m:StreamSetup><m:ProfileToken>' + escape(p.get('token', '')) + '</m:ProfileToken>'
                 root = self.call(c, media, onvif.MEDIA, 'GetStreamUri', body)
                 uri = root.find('.//' + T + 'Uri')
-                if uri is not None and url.urlsplit(uri.text).path == url.urlsplit(c['mainPath']).path:
+                actual, wanted_uri = url.urlsplit(uri.text if uri is not None else ''), url.urlsplit(c['mainPath'])
+                if (actual.hostname == c['host'] and actual.path == wanted_uri.path
+                        and sorted(url.parse_qsl(actual.query, keep_blank_values=True)) == sorted(url.parse_qsl(wanted_uri.query, keep_blank_values=True))):
                     selected = p
                     break
         if selected is None:
diff --git a/test_app.py b/test_app.py
index d9d6025..a8796ee 100644
--- a/test_app.py
+++ b/test_app.py
@@ -39,9 +39,9 @@ class WebTests(unittest.TestCase):
         app.DB.close()
         _data.cleanup()
 
-    def request(self, path, authenticated=True, data=None, origin=None):
+    def request(self, path, authenticated=True, data=None, origin=None, token=None):
         c = http.client.HTTPConnection(*self.server.server_address, timeout=3)
-        headers = {'Cookie': 'vision=' + 'f' * 64} if authenticated else {}
+        headers = {'Cookie': 'vision=' + (token or 'f' * 64)} if authenticated else {}
         if origin:
             headers['Origin'] = origin
         if data is not None:
@@ -78,7 +78,7 @@ class WebTests(unittest.TestCase):
         self.assertEqual(headers['Cache-Control'], 'no-store')
         self.assertNotIn(b'__ASSET_VERSION__', body)
         assets = re.findall(r'(?:src|href)="(/[^"?]+\.(?:js|css)\?v=[^"]+)"', body.decode())
-        self.assertEqual(len(assets), 13)
+        self.assertEqual(len(assets), 15)
         version = (app.ROOT / 'VERSION').read_text().strip()
         for asset in assets:
             self.assertTrue(asset.endswith('?v=' + version))
@@ -345,6 +345,208 @@ class WebTests(unittest.TestCase):
             with self.assertRaises(app.Problem):
                 app.media_json('/list?path=example', playback=True)
 
+    def family_save(self, kind, data):
+        return app.FAMILY.save(kind, dict(data, revision=app.setting('familyRevision', 0)), self.admin)
+
+    def test_history_records_before_after_and_restore_as_new_version(self):
+        first = self.family_save('person', {'name': 'History original', 'biography': 'Original story'})
+        second = self.family_save('person', dict(first['item'], name='History changed'))
+        change = app.FAMILY.change(self.admin, second['revision'])
+        self.assertEqual(change['before']['name'], 'History original')
+        self.assertEqual(change['after']['name'], 'History changed')
+        restored = app.FAMILY.restore({'changeRevision': second['revision'], 'side': 'before',
+                                      'revision': app.setting('familyRevision')}, self.admin)
+        self.assertEqual(restored['item']['name'], 'History original')
+        self.assertGreater(restored['revision'], second['revision'])
+        entries = app.FAMILY.history(self.admin, 'person', first['item']['id'])['items']
+        self.assertEqual(len(entries), 3)
+        self.assertEqual(entries[0]['restoredFrom'], second['revision'])
+        self.assertEqual(app.FAMILY.change(self.admin, second['revision']), change)
+
+    def test_history_rejects_stale_restore_without_writing(self):
+        first = self.family_save('person', {'name': 'Stale restore'})
+        second = self.family_save('person', dict(first['item'], name='Latest'))
+        with self.assertRaises(app.Problem) as caught:
+            app.FAMILY.restore(dict(changeRevision=first['revision'], side='after', revision=first['revision']), self.admin)
+        self.assertEqual(caught.exception.status, 409)
+        self.assertEqual(app.get_object('people', first['item']['id'])['name'], 'Latest')
+        self.assertEqual(app.setting('familyRevision'), second['revision'])
+
+    def test_restore_revalidates_current_birth_order(self):
+        old = self.family_save('person', {'name': 'Restore parent', 'birthDate': '1980-01-01'})
+        parent = self.family_save('person', dict(old['item'], birthDate='1960-01-01'))['item']
+        child = self.family_save('person', {'name': 'Restore child', 'birthDate': '1970-01-01'})['item']
+        self.family_save('link', dict(fromId=parent['id'], toId=child['id'], kind='parent', lineage='biological'))
+        with self.assertRaises(app.Problem):
+            app.FAMILY.restore(dict(changeRevision=old['revision'], side='after', revision=app.setting('familyRevision')), self.admin)
+        self.assertEqual(app.get_object('people', parent['id'])['birthDate'], '1960-01-01')
+
+    def test_restore_link_cannot_create_new_cycle(self):
+        a = self.family_save('person', {'name': 'Cycle A'})['item']
+        b = self.family_save('person', {'name': 'Cycle B'})['item']
+        old = self.family_save('link', dict(fromId=a['id'], toId=b['id'], kind='parent'))
+        self.family_save('link', dict(old['item'], active=False))
+        self.family_save('link', dict(fromId=b['id'], toId=a['id'], kind='parent'))
+        with self.assertRaises(app.Problem):
+            app.FAMILY.restore(dict(changeRevision=old['revision'], side='after', revision=app.setting('familyRevision')), self.admin)
+        self.assertFalse(app.get_object('family_links', old['item']['id'])['active'])
+
+    def test_restore_event_preserves_first_publication_and_validates_scope(self):
+        draft = self.family_save('event', dict(title='Restored story', eventDate='2020-01-01', body='Draft', status='draft'))
+        published = self.family_save('event', dict(draft['item'], body='Published', status='published'))
+        restored = app.FAMILY.restore(dict(changeRevision=draft['revision'], side='after', revision=app.setting('familyRevision')), self.admin)
+        self.assertEqual(restored['item']['status'], 'draft')
+        self.assertEqual(restored['item']['publishedAt'], published['item']['publishedAt'])
+        self.assertNotIn(draft['item']['id'], [e['id'] for e in app.FAMILY.snapshot(dict(role='member', familyAccess='read'))['events']])
+        for side in ['before', 'invalid']:
+            with self.assertRaises(app.Problem):
+                app.FAMILY.restore(dict(changeRevision=draft['revision'], side=side, revision=app.setting('familyRevision')), self.admin)
+
+    def test_history_pagination_is_complete_and_omits_story_bodies(self):
+        item = self.family_save('person', {'name': 'Pagination', 'biography': 'Private full story'})['item']
+        for i in range(23):item = self.family_save('person', dict(item, note=str(i)))['item']
+        first = app.FAMILY.history(self.admin, 'person', item['id'])
+        second = app.FAMILY.history(self.admin, 'person', item['id'], first['nextBefore'])
+        revisions = [v['revision'] for v in first['items'] + second['items']]
+        self.assertEqual(len(revisions), 24)
+        self.assertEqual(len(set(revisions)), 24)
+        self.assertIsNone(second['nextBefore'])
+        self.assertNotIn('Private full story', json.dumps(first))
+
+    def test_history_and_restore_endpoints_enforce_edit_permission(self):
+        item = self.family_save('person', {'name': 'Permission history'})
+        reader = app.ACCOUNTS.save(dict(username='history-reader', password='test-reader', familyAccess='read'), self.admin)
+        token = 'd' * 64
+        with app.LOCK:
+            app.DB.execute('INSERT INTO sessions VALUES (?,?,?)', (hashlib.sha256(token.encode()).hexdigest(), time.time()+3600, reader['id']))
+            app.DB.commit()
+        path = '/api/family/history?kind=person&id=' + item['item']['id']
+        for target in [path, '/api/family/change?revision=' + str(item['revision'])]:
+            self.assertEqual(self.request(target, token=token)[0], 403)
+            self.assertEqual(self.request(target, authenticated=False)[0], 401)
+            self.assertEqual(self.request(target)[0], 200)
+        self.assertEqual(self.request('/api/family/restore', token=token, data={})[0], 403)
+        for number in ['bad', '-1', '0', '99999999999999999999999']:
+            self.assertEqual(self.request('/api/family/change?revision=' + number)[0], 400)
+
+    def test_family_history_transaction_rolls_back_on_storage_failure(self):
+        before = app.setting('familyRevision', 0)
+        with app.LOCK:
+            app.DB.execute("CREATE TRIGGER fail_history BEFORE INSERT ON family_changes BEGIN SELECT RAISE(ABORT, 'test failure'); END")
+            app.DB.commit()
+        try:
+            import sqlite3
+            with self.assertRaises(sqlite3.IntegrityError):self.family_save('person', {'name': 'Must not persist'})
+            self.assertEqual(app.setting('familyRevision', 0), before)
+            self.assertFalse(any(p['name']=='Must not persist' for p in app.objects('people')))
+        finally:
+            with app.LOCK:app.DB.execute('DROP TRIGGER fail_history');app.DB.commit()
+
+    def test_concurrent_family_saves_accept_only_one_revision(self):
+        from concurrent.futures import ThreadPoolExecutor
+        revision = app.setting('familyRevision', 0); barrier = threading.Barrier(2)
+        def save(index):
+            barrier.wait()
+            try:app.FAMILY.save('person', dict(name='Concurrent '+str(index), revision=revision), self.admin);return 200
+            except app.Problem as e:return e.status
+        with ThreadPoolExecutor(max_workers=2) as pool:self.assertEqual(sorted(pool.map(save, range(2))), [200, 409])
+        self.assertEqual(app.setting('familyRevision'), revision+1)
+
+    def test_password_change_revokes_all_own_sessions_and_keeps_other_accounts(self):
+        member = app.ACCOUNTS.save(dict(username='password-member', password='old-password', familyAccess='read'), self.admin)
+        tokens = ['1'*64, '2'*64]
+        with app.LOCK:
+            for token in tokens:app.DB.execute('INSERT INTO sessions VALUES (?,?,?)', (hashlib.sha256(token.encode()).hexdigest(), time.time()+3600, member['id']))
+            app.DB.commit()
+        code, headers, _ = self.request('/api/account/password', token=tokens[0], data=dict(currentPassword='old-password', newPassword='new-password', id=self.admin['id'], role='admin'))
+        self.assertEqual(code, 200);self.assertIn('Max-Age=0', headers['Set-Cookie'])
+        self.assertIsNone(app.ACCOUNTS.verify(member['username'], 'old-password'))
+        self.assertEqual(app.ACCOUNTS.verify(member['username'], 'new-password')['role'], 'member')
+        for token in tokens:self.assertEqual(self.request('/api/family', token=token)[0], 401)
+        self.assertEqual(self.request('/api/users')[0], 200)
+
+    def test_password_validation_and_rate_limit(self):
+        actor = app.ACCOUNTS.save(dict(username='password-validation', password='old-password'), self.admin)
+        for data in [dict(currentPassword='old-password', newPassword='tiny'),dict(currentPassword='old-password', newPassword='old-password')]:
+            with self.assertRaises(app.Problem):app.ACCOUNTS.change_password(data, actor)
+        for _ in range(8):
+            with self.assertRaises(app.Problem) as caught:app.ACCOUNTS.change_password(dict(currentPassword='wrong', newPassword='new-password'), actor)
+            self.assertEqual(caught.exception.status, 403)
+        with self.assertRaises(app.Problem) as caught:app.ACCOUNTS.change_password(dict(currentPassword='old-password', newPassword='new-password'), actor)
+        self.assertEqual(caught.exception.status, 429)
+        self.assertIsNotNone(app.ACCOUNTS.verify(actor['username'], 'old-password'))
+        self.assertEqual(self.request('/api/account/password', authenticated=False, data={})[0], 401)
+        self.assertEqual(self.request('/api/account/password', data={}, origin='http://[bad')[0], 403)
+
+    def test_object_ids_and_hosts_reject_malformed_input_without_500(self):
+        for endpoint in ['sites', 'assets', 'cameras', 'recorders']:
+            for value in [[], {}, 17, True]:
+                self.assertEqual(self.request('/api/'+endpoint, data={'id':value})[0], 400)
+            self.assertEqual(self.request('/api/'+endpoint, data={'id':'9'*16})[0], 404)
+        for value in [None, 123, [], {}, True]:
+            with self.assertRaises(app.Problem):app.host_address(value)
+
+    def test_concurrent_camera_capacity_and_asset_space_move(self):
+        from concurrent.futures import ThreadPoolExecutor
+        site = app.save_site({'name':'Capacity space'})
+        other = app.save_site({'name':'Moved space'})
+        asset = app.save_asset(dict(name='Single lens', siteId=site['id'], lensCount=1))
+        barrier = threading.Barrier(2)
+        def save(index):
+            barrier.wait()
+            try:app.save_camera(dict(name='Concurrent lens '+str(index), assetId=asset['id'], host='192.168.0.2'));return 200
+            except app.Problem as e:return e.status
+        with patch.object(app, 'write_media_config'):
+            with ThreadPoolExecutor(max_workers=2) as pool:self.assertEqual(sorted(pool.map(save, range(2))), [200, 400])
+        attached = [c for c in app.objects('cameras') if c.get('assetId')==asset['id']]
+        self.assertEqual(len(attached), 1)
+        app.save_asset(dict(asset, siteId=other['id']))
+        self.assertEqual(app.get_object('cameras', attached[0]['id'])['siteId'], other['id'])
+
+    def test_recorder_updates_are_reflected_in_channel_endpoint_without_password(self):
+        site = app.save_site({'name':'Recorder test'})
+        asset = app.save_asset(dict(name='Recorder lens', siteId=site['id'], lensCount=1))
+        with patch.object(app, 'write_media_config'):
+            r = app.save_recorder(dict(name='NVR test', siteId=site['id'], host='192.168.0.8', username='test', password='private'))
+            camera = app.save_camera(dict(name='Channel', assetId=asset['id'], sourceKind='recorder', recorderId=r['id']))
+            app.save_recorder(dict(r, host='192.168.0.9', username='updated'))
+        current = app.public_camera(app.get_object('cameras', camera['id']))
+        self.assertEqual(current['host'], '192.168.0.9')
+        self.assertEqual(current['username'], 'updated')
+        self.assertTrue(current['passwordConfigured']);self.assertNotIn('password', current)
+
+    def test_camera_settings_admin_only_and_errors_are_explicit(self):
+        user = app.ACCOUNTS.save(dict(username='settings-member', password='settings-pass', siteIds=['test-site'] if app.get_object('sites','test-site') else []), self.admin)
+        token = '3'*64
+        with app.LOCK:
+            app.DB.execute('INSERT INTO sessions VALUES (?,?,?)', (hashlib.sha256(token.encode()).hexdigest(),time.time()+3600,user['id']));app.DB.commit()
+        path = '/api/camera/settings?camera='+'a'*16
+        self.assertEqual(self.request(path,token=token)[0],403)
+        self.assertEqual(self.request('/api/camera/settings',data={},token=token)[0],403)
+        self.assertEqual(self.request(path,authenticated=False)[0],401)
+        with patch.object(app.camera_settings.CONTROLLER,'read',return_value=({'device':{'Model':'Example'},'revision':'one'},{})):
+            self.assertEqual(self.request(path)[0],200)
+        with patch.object(app.camera_settings.CONTROLLER,'save',side_effect=ValueError('unsupported')):
+            self.assertEqual(self.request('/api/camera/settings',data={'camera':'a'*16})[0],400)
+        with patch.object(app.camera_settings.CONTROLLER,'save',side_effect=OSError()):
+            self.assertEqual(self.request('/api/camera/settings',data={'camera':'a'*16})[0],502)
+
+    def test_asset_move_rolls_back_all_channels_on_failure(self):
+        import sqlite3
+        site = app.save_site({'name':'Original site atomic'})
+        other = app.save_site({'name':'New site atomic'})
+        asset = app.save_asset(dict(name='Atomic move',siteId=site['id'],lensCount=1))
+        with patch.object(app,'write_media_config'):
+            camera = app.save_camera(dict(name='Atomic lens',assetId=asset['id'],host='192.168.0.2'))
+        with app.LOCK:
+            app.DB.execute("CREATE TRIGGER fail_camera_move BEFORE UPDATE ON cameras BEGIN SELECT RAISE(ABORT,'test'); END");app.DB.commit()
+        try:
+            with self.assertRaises(sqlite3.IntegrityError):app.save_asset(dict(asset,siteId=other['id']))
+            self.assertEqual(app.get_object('assets',asset['id'])['siteId'],site['id'])
+            self.assertEqual(app.get_object('cameras',camera['id'])['siteId'],site['id'])
+        finally:
+            with app.LOCK:app.DB.execute('DROP TRIGGER fail_camera_move');app.DB.commit()
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/test_camera_settings.py b/test_camera_settings.py
new file mode 100644
index 0000000..6d5aaf5
--- /dev/null
+++ b/test_camera_settings.py
@@ -0,0 +1,122 @@
+"""ONVIF contract tests against synthetic devices; no real camera is modified."""
+import copy
+import unittest
+from unittest.mock import patch
+from xml.etree import ElementTree as ET
+import camera_settings as cs
+import onvif
+
+
+def xml(inner):
+    return ET.fromstring('<root xmlns:t="'+onvif.SCHEMA+'" xmlns:m="'+onvif.MEDIA+'" xmlns:i="'+cs.IMAGING+'">'+inner+'</root>')
+
+
+class SettingsTests(unittest.TestCase):
+    def setUp(self):
+        self.controller=cs.Settings()
+        self.camera=dict(host='192.168.0.2',username='test',password='private',sourceKind='direct',enabled=True,
+                         mainPath='/stream?profile=lens2',subPath='/sub?profile=lens2')
+        self.encoder=xml('<t:VideoEncoderConfiguration token="encoder2" encoding="H265"><t:Encoding>H264</t:Encoding>'
+                         '<t:Resolution><t:Width>1920</t:Width><t:Height>1080</t:Height></t:Resolution><t:Quality>3</t:Quality>'
+                         '<t:RateControl><t:FrameRateLimit>15</t:FrameRateLimit><t:BitrateLimit>2048</t:BitrateLimit></t:RateControl>'
+                         '<t:H264><t:GovLength>60</t:GovLength><t:H264Profile>Main</t:H264Profile></t:H264>'
+                         '<t:Multicast><t:TTL>1</t:TTL></t:Multicast><t:SessionTimeout>PT5S</t:SessionTimeout></t:VideoEncoderConfiguration>')[0]
+        self.info=dict(device=(80,'/onvif/device_service'),services={'Media':(80,'/media'),'Imaging':(80,'/imaging')},
+                       source='source2',profile='lens2',encoder=self.encoder)
+        self.imaging=xml('<i:ImagingSettings><t:Brightness>50</t:Brightness><t:IrCutFilter>AUTO</t:IrCutFilter>'
+                         '<t:Focus><t:AutoFocusMode>MANUAL</t:AutoFocusMode></t:Focus></i:ImagingSettings>')
+        self.image_options=xml('<i:ImagingOptions><t:Brightness><t:Min>0</t:Min><t:Max>100</t:Max></t:Brightness>'
+                              '<t:IrCutFilterModes>AUTO</t:IrCutFilterModes><t:IrCutFilterModes>ON</t:IrCutFilterModes></i:ImagingOptions>')
+        self.video_options=xml('<m:Options><t:QualityRange><t:Min>0</t:Min><t:Max>5</t:Max></t:QualityRange>'
+                              '<t:H264><t:FrameRateRange><t:Min>1</t:Min><t:Max>15</t:Max></t:FrameRateRange>'
+                              '<t:ResolutionsAvailable><t:Width>1920</t:Width><t:Height>1080</t:Height></t:ResolutionsAvailable></t:H264>'
+                              '<t:Extension><t:H264><t:BitrateRange><t:Min>256</t:Min><t:Max>2048</t:Max></t:BitrateRange></t:H264></t:Extension></m:Options>')
+        self.calls=[]
+
+    def call(self,camera,endpoint,ns,operation,body=''):
+        self.calls.append((operation,body))
+        if operation=='GetDeviceInformation':return xml('')
+        if operation=='GetImagingSettings':return copy.deepcopy(self.imaging)
+        if operation=='GetOptions':return self.image_options
+        if operation=='GetVideoEncoderConfigurationOptions':return self.video_options
+        if operation=='SetImagingSettings':
+            root=xml(body.replace('xmlns:', 'xmlns:'))
+            self.imaging=xml(ET.tostring(root.find(cs.I+'ImagingSettings'),encoding='unicode'))
+            return xml('')
+        return xml('')
+
+    def test_device_ranges_and_vendor_codec_are_exposed_without_credentials(self):
+        with patch.object(self.controller,'call',self.call):data=self.controller.details(self.camera,self.info)
+        self.assertEqual(data['imaging']['brightness']['max'],100)
+        self.assertEqual(data['imaging']['dayNight']['choices'],['AUTO','ON'])
+        self.assertEqual(data['video']['codec'],'H265')
+        self.assertEqual(data['video']['options']['bitrate']['max'],2048)
+        self.assertNotIn('private',str(data))
+        self.assertNotIn('sharpness',data['imaging'])
+
+    def test_rejects_bad_values_and_unsupported_controls(self):
+        rule={'brightness':dict(min=0,max=100)}
+        for value in [True,101,-1,float('nan'),float('inf'),'50']:
+            with self.assertRaises(ValueError):self.controller.validate({'brightness':value},rule)
+        for values in [{},{'unknown':1},None,[]]:
+            with self.assertRaises(ValueError):self.controller.validate(values,rule)
+        with self.assertRaises(ValueError):self.controller.validate({'fps':1.5},{'fps':dict(min=1,max=15)},('fps',))
+        with self.assertRaises(ValueError):self.controller.validate({'mode':'OFF'},{'mode':dict(choices=['AUTO'])})
+
+    def test_imaging_write_preserves_other_fields_and_verifies_readback(self):
+        with patch.object(self.controller,'discover',return_value=self.info),patch.object(self.controller,'call',self.call):
+            data,_=self.controller.read(self.camera)
+            result=self.controller.save(self.camera,dict(revision=data['revision'],section='imaging',values={'brightness':60},quality='main'))
+        self.assertTrue(result['verified'])
+        sent=next(body for op,body in self.calls if op=='SetImagingSettings')
+        self.assertIn('MANUAL',sent);self.assertIn('source2',sent);self.assertIn('ForcePersistence',sent)
+
+    def test_stale_revision_never_issues_device_write(self):
+        with patch.object(self.controller,'discover',return_value=self.info),patch.object(self.controller,'call',self.call):
+            with self.assertRaises(ValueError):self.controller.save(self.camera,dict(revision='old',section='imaging',values={'brightness':60}))
+        self.assertFalse(any(op.startswith('Set') for op,_ in self.calls))
+
+    def test_video_write_retains_codec_extension_multicast_and_other_settings(self):
+        with patch.object(self.controller,'discover',return_value=self.info),patch.object(self.controller,'call',self.call):
+            data,_=self.controller.read(self.camera)
+            result=self.controller.save(self.camera,dict(revision=data['revision'],section='video',values={'fps':10}))
+        sent=next(body for op,body in self.calls if op=='SetVideoEncoderConfiguration')
+        self.assertIn('encoding="H265"',sent);self.assertIn('Multicast',sent);self.assertIn('SessionTimeout',sent)
+        self.assertIn('>10<',sent);self.assertFalse(result['verified'])  # Synthetic device deliberately ignores this write.
+
+    def test_device_timeout_after_save_does_not_falsely_claim_confirmation(self):
+        with patch.object(self.controller,'call',self.call):data=self.controller.details(self.camera,self.info)
+        with patch.object(self.controller,'read',side_effect=[(data,self.info),OSError()]),patch.object(self.controller,'call',return_value=xml('')):
+            result=self.controller.save(self.camera,dict(revision=data['revision'],section='imaging',values={'brightness':60}))
+        self.assertFalse(result['verified']);self.assertIsNone(result['settings'])
+
+    def test_onvif_requests_do_not_follow_redirects(self):
+        self.assertIsNone(onvif.NoRedirect().redirect_request(None, None, 302, 'Found', {}, 'http://other.example/'))
+
+    def test_network_endpoints_and_recorder_channels_are_rejected(self):
+        for address in ['http://evil.example/api','https://192.168.0.2/api','http://u:p@192.168.0.2/api','file:///etc/passwd']:
+            with self.assertRaises(ValueError):self.controller.endpoint(self.camera,address)
+        for overrides in [dict(sourceKind='recorder'),dict(enabled=False)]:
+            with self.assertRaises(ValueError):self.controller.discover(dict(self.camera,**overrides),'main')
+        with self.assertRaises(ValueError):self.controller.discover(self.camera,'bad')
+
+    def test_exact_profile_path_and_query_selects_second_lens(self):
+        selected=[]
+        def call(c,e,ns,op,body=''):
+            if op=='GetCapabilities':return xml('<t:Media><t:XAddr>http://192.168.0.2/media</t:XAddr></t:Media>')
+            if op=='GetProfiles':return xml(''.join('<m:Profiles token="lens'+str(i)+'"><t:VideoSourceConfiguration><t:SourceToken>source'+str(i)+'</t:SourceToken></t:VideoSourceConfiguration>'+ET.tostring(self.encoder,encoding='unicode')+'</m:Profiles>' for i in [1,2]))
+            if op=='GetStreamUri':
+                token='lens2' if 'lens2' in body else 'lens1';selected.append(token)
+                return xml('<t:Uri>rtsp://192.168.0.2/stream?profile='+token+'</t:Uri>')
+        with patch.object(self.controller,'call',call):info=self.controller.discover(self.camera,'main')
+        self.assertEqual(info['source'],'source2');self.assertEqual(selected,['lens1','lens2'])
+
+    def test_failed_options_disable_writes_but_keep_other_section_readable(self):
+        def call(*args):
+            if args[3]=='GetVideoEncoderConfigurationOptions':raise OSError()
+            return self.call(*args)
+        with patch.object(self.controller,'call',call):data=self.controller.details(self.camera,self.info)
+        self.assertEqual(data['video']['options'],{});self.assertIn('brightness',data['imaging']);self.assertTrue(data['notes'])
+
+
+if __name__=='__main__':unittest.main()
diff --git a/test_ui_logic.js b/test_ui_logic.js
index 1ac7701..8a2db64 100644
--- a/test_ui_logic.js
+++ b/test_ui_logic.js
@@ -72,3 +72,53 @@ test('older family request errors cannot repopulate logged-out view',async()=>{
   vm.runInContext(section('family.js','async function loadFamily(','function relationText('),c);
   const p=c.loadFamily();c.loggedIn=false;c.familyGeneration++;pending.reject(Error('late error'));assert.equal(await p,false);assert.equal(messages,0);
 });
+
+const historySource=section('family-history.js','async function showFamilyChange(','function prepareFamilyRestore(');
+test('history prose is never translated as an enum value',()=>{
+  const c=context({personName:id=>'Person '+id});vm.runInContext(section('family-history.js','function historyValue(','async function openFamilyHistory('),c);
+  assert.equal(c.historyValue('body','published'),'published');assert.equal(c.historyValue('status','published'),'已发布');
+  assert.equal(c.historyValue('personIds',['a','b']),'Person a、Person b');assert.equal(c.historyValue('active',false),'否');
+});
+test('history detail from a previous selection cannot replace newer detail',async()=>{
+  const a=deferred(),b=deferred(),calls=[a,b],elements=new Map(),$=s=>{if(!elements.has(s))elements.set(s,{});return elements.get(s);};
+  const c=context({historyContext:{},historyDetailGeneration:0,historySelection:null,api:()=>calls.shift().promise,$,historyFields:{name:'Name'},esc:String,historyValue:(_,v)=>v});
+  vm.runInContext(historySource,c);const old=c.showFamilyChange(1),latest=c.showFamilyChange(2);
+  b.resolve({revision:2,before:null,after:{name:'New'}});await latest;const html=$('#history-detail').innerHTML;
+  a.resolve({revision:1,before:null,after:{name:'Old'}});await old;assert.equal($('#history-detail').innerHTML,html);assert.equal(c.historySelection.revision,2);
+});
+test('closing history prevents late private detail from rendering',async()=>{
+  const pending=deferred(),detail={};const c=context({historyContext:{},historyDetailGeneration:0,historySelection:null,api:()=>pending.promise,$:()=>detail});
+  vm.runInContext(historySource,c);const request=c.showFamilyChange(1);c.historyContext=null;c.historyDetailGeneration++;pending.resolve({after:{name:'Private'}});await request;
+  assert.equal(detail.innerHTML,undefined);assert.equal(c.historySelection,null);
+});
+test('password form requires matching, distinct and bounded new password',()=>{
+  const c=context();vm.runInContext(section('app.js','function validateNewPassword(','$(\'#account-password\').onclick='),c);
+  for(const data of [{newPassword:'different',confirmPassword:'mismatch'},{newPassword:'samepass',confirmPassword:'samepass',currentPassword:'samepass'},{newPassword:'short',confirmPassword:'short'},{newPassword:'x'.repeat(129),confirmPassword:'x'.repeat(129)}])assert.throws(()=>c.validateNewPassword(data));
+  assert.doesNotThrow(()=>c.validateNewPassword({newPassword:'new-password',confirmPassword:'new-password',currentPassword:'old-password'}));
+});
+test('history restore sends the reviewed revision and never the full text',async()=>{
+  let sent;const elements=new Map(),$=s=>{if(!elements.has(s))elements.set(s,{replaceChildren(){}});return elements.get(s);};
+  const c=context({historyContext:{revision:10},historySelection:{revision:3,before:{name:'Original'}},historyDetailGeneration:1,$,$$:()=>[],
+    api:async(path,data)=>{sent={path,data};},loadFamilyHistory:async()=>{},loadFamily:async()=>true,toast:()=>{}});
+  vm.runInContext(section('family-history.js','async function restoreFamilyChange(','$(\'#history-more\').onclick='),c);await c.restoreFamilyChange('before');
+  assert.equal(sent.path,'/api/family/restore');assert.equal(JSON.stringify(sent.data),JSON.stringify({changeRevision:3,side:'before',revision:10}));assert.equal(c.historySelection,null);
+});
+
+test('camera form sends only changed and advertised parameters',()=>{
+  const c=context();vm.runInContext(section('camera-settings.js','function changedCameraValues(','async function saveCameraSettings('),c);
+  const form={elements:{brightness:{value:'60'},dayNight:{value:'AUTO'},malicious:{value:'anything'}}};
+  const settings={imaging:{brightness:{value:50,min:0,max:100},dayNight:{value:'AUTO',choices:['AUTO','ON']}}};
+  assert.equal(JSON.stringify(c.changedCameraValues(form,'imaging',settings)),JSON.stringify({brightness:60}));
+});
+test('late camera settings cannot populate a closed or different camera dialog',async()=>{
+  const pending=deferred(),elements=new Map(),$=s=>{if(!elements.has(s))elements.set(s,{value:'main'});return elements.get(s);};let renders=0;
+  const c=context({cameraSettingsContext:{id:'old'},cameraSettingsGeneration:0,$,$$:()=>[],URLSearchParams,api:()=>pending.promise,renderCameraSettings:()=>renders++});
+  vm.runInContext(section('camera-settings.js','async function loadCameraSettings(','async function openCameraSettings('),c);const request=c.loadCameraSettings();c.cameraSettingsContext={id:'new'};c.cameraSettingsGeneration++;pending.resolve({device:{}});await request;assert.equal(renders,0);
+});
+test('ambiguous device save requires re-read before another write',async()=>{
+  const elements=new Map(),$=s=>{if(!elements.has(s))elements.set(s,{});return elements.get(s);};const buttons=[{disabled:false}];
+  const c=context({cameraSettingsContext:{id:'camera',quality:'main',settings:{revision:'old'}},cameraSettingsGeneration:0,$,$$:()=>buttons,
+    changedCameraValues:()=>({brightness:60}),api:async()=>{throw Error('connection lost');},toast:()=>{}});
+  vm.runInContext(section('camera-settings.js','async function saveCameraSettings(','for(const [id,section]'),c);await c.saveCameraSettings({},'imaging');
+  assert.equal(c.cameraSettingsContext.settings,null);assert.equal(buttons[0].disabled,true);assert.equal($('#camera-settings-reload').disabled,false);
+});
diff --git a/web/app.js b/web/app.js
index d364d9b..c2009d8 100644
--- a/web/app.js
+++ b/web/app.js
@@ -9,11 +9,13 @@ let currentUser = null, sessionGeneration = 0, refreshGeneration = 0, authGenera
 const isAdmin = () => currentUser?.role === 'admin';
 function applyPermissions(){
   const admin=isAdmin();
-  $$('[data-admin],nav [data-page="objects"],nav [data-page="recorders"],nav [data-page="cameras"],nav [data-page="sites"],nav [data-page="storage"],[data-action],[data-edit-camera]').forEach(el=>el.hidden=!admin);
+  $('#account-password').hidden=!loggedIn;
+  $$('[data-admin],nav [data-page="objects"],nav [data-page="recorders"],nav [data-page="cameras"],nav [data-page="sites"],nav [data-page="storage"],[data-action],[data-edit-camera],[data-camera-settings]').forEach(el=>el.hidden=!admin);
   $('nav [data-page="family"]').hidden=!admin&&(!currentUser||currentUser.familyAccess==='none');
   $('#current-user').textContent=currentUser ? currentUser.name+' · '+(admin?'管理员':'个人账号') : '';
 }
 function clearPrivateView(){
+  if(typeof clearCameraSettings==='function')clearCameraSettings();
   sessionGeneration++;refreshGeneration++;authGeneration++;loggedIn=false;
   if(typeof closePtz==='function')closePtz();if(document.fullscreenElement)document.exitFullscreen().catch(()=>{});
   currentUser=null;stopPlayers();resetPlayback();
@@ -85,7 +87,7 @@ function renderLive() {
   const key = ZhaoLivePlayer.key(cameras, quality);
   if (key === liveKey) { updateLiveStatus(cameras); return; }
   stopPlayers(); liveKey = key;
-  $('#live-grid').innerHTML = cameras.length ? cameras.map(c=>`<article class="camera-card"><div class="wall-reorder"><span draggable="false" data-wall-drag="${c.id}" title="拖动排列">⠿ 拖动</span><button class="quiet" data-wall-before="${c.id}" aria-label="${esc(c.name)}前移">前移</button><button class="quiet" data-wall-after="${c.id}" aria-label="${esc(c.name)}后移">后移</button></div><div class="video-panel"><video data-camera="${c.id}" muted playsinline controls></video><div class="video-empty"><span class="lens">◎</span><span>${c.enabled ? '正在等待画面' : '设备连接已停用'}</span></div><div class="video-error" hidden></div></div><div class="camera-meta"><div><strong>${esc(c.name)}</strong><p>${esc(siteName(c.siteId)+' · '+(c.point || '安装位置待填写'))}</p></div><span class="badge ${c.ready?'':'off'}">${c.recordingActive ? '● 正在录像' : c.ready ? '码流已接通' : c.enabled ? '等待接通' : '已停用'}</span></div><div class="camera-actions"><button class="quiet" data-edit-camera="${c.id}">设备配置</button><button class="quiet" data-play-camera="${c.id}">查看录像</button><button class="quiet" data-ptz-camera="${c.id}" hidden>云台控制</button></div></article>`).join('') : (isAdmin()?empty('先接入一台摄像头','建立空间档案，再把设备添加到对应位置。','<button data-action="new-camera">＋ 添加摄像头</button>'):empty('当前范围没有可查看的摄像头','请选择已授权空间，或联系管理员配置观看权限。'));
+  $('#live-grid').innerHTML = cameras.length ? cameras.map(c=>`<article class="camera-card"><div class="wall-reorder"><span draggable="false" data-wall-drag="${c.id}" title="拖动排列">⠿ 拖动</span><button class="quiet" data-wall-before="${c.id}" aria-label="${esc(c.name)}前移">前移</button><button class="quiet" data-wall-after="${c.id}" aria-label="${esc(c.name)}后移">后移</button></div><div class="video-panel"><video data-camera="${c.id}" muted playsinline controls></video><div class="video-empty"><span class="lens">◎</span><span>${c.enabled ? '正在等待画面' : '设备连接已停用'}</span></div><div class="video-error" hidden></div></div><div class="camera-meta"><div><strong>${esc(c.name)}</strong><p>${esc(siteName(c.siteId)+' · '+(c.point || '安装位置待填写'))}</p></div><span class="badge ${c.ready?'':'off'}">${c.recordingActive ? '● 正在录像' : c.ready ? '码流已接通' : c.enabled ? '等待接通' : '已停用'}</span></div><div class="camera-actions"><button class="quiet" data-edit-camera="${c.id}">设备配置</button><button class="quiet" data-camera-settings="${c.id}">摄像机设置</button><button class="quiet" data-play-camera="${c.id}">查看录像</button><button class="quiet" data-ptz-camera="${c.id}" hidden>云台控制</button></div></article>`).join('') : (isAdmin()?empty('先接入一台摄像头','建立空间档案，再把设备添加到对应位置。','<button data-action="new-camera">＋ 添加摄像头</button>'):empty('当前范围没有可查看的摄像头','请选择已授权空间，或联系管理员配置观看权限。'));
   for (const c of cameras.filter(c=>c.enabled)) {
     const video = $(`video[data-camera="${c.id}"]`);
     players.push(new ZhaoLivePlayer(video, video.parentElement, `/media/live/cam_${c.id}_${quality}/index.m3u8`));
@@ -107,7 +109,7 @@ function renderCameras() {
   $('#scan-button').disabled=state.scan.running; $('#scan-button').textContent=state.scan.running?'正在探测…':'开始探测';
   $('#scan-result').innerHTML=(state.scan.items||[]).map(s=>`<div class="scan-chip"><span>${esc(s.host)}<small> · RTSP 服务响应</small></span><button data-found="${esc(s.host)}">添加</button></div>`).join('') || (state.scan.at ? '<p class="description">本次没有发现响应 RTSP 554 端口的设备。</p>' : '');
   const cameras=filtered();
-  $('#camera-list').innerHTML=cameras.length?`<div class="table-wrap"><table class="device-table"><thead><tr><th>设备 / 位置</th><th>所属空间</th><th>地址</th><th>码流状态</th><th>录像</th><th></th></tr></thead><tbody>${cameras.map(c=>`<tr><td>${esc(c.name)}<small>${esc(c.point||'位置待完善')}</small></td><td>${esc(siteName(c.siteId))}</td><td>${esc(c.host)}:${c.port}</td><td><span class="badge ${c.ready?'':'off'}">${c.ready?'已接通':c.enabled?'未接通':'停用'}</span></td><td>${c.recordingActive?'正在录像':c.record?'已配置，等待写入':'未开启'}</td><td><button class="quiet" data-edit-camera="${c.id}">配置</button></td></tr>`).join('')}</tbody></table></div>`:empty('尚无摄像头','可以先扫描当前局域网，或手动填写设备地址。');
+  $('#camera-list').innerHTML=cameras.length?`<div class="table-wrap"><table class="device-table"><thead><tr><th>设备 / 位置</th><th>所属空间</th><th>地址</th><th>码流状态</th><th>录像</th><th></th></tr></thead><tbody>${cameras.map(c=>`<tr><td>${esc(c.name)}<small>${esc(c.point||'位置待完善')}</small></td><td>${esc(siteName(c.siteId))}</td><td>${esc(c.host)}:${c.port}</td><td><span class="badge ${c.ready?'':'off'}">${c.ready?'已接通':c.enabled?'未接通':'停用'}</span></td><td>${c.recordingActive?'正在录像':c.record?'已配置，等待写入':'未开启'}</td><td><button class="quiet" data-edit-camera="${c.id}">配置</button><button class="quiet" data-camera-settings="${c.id}">摄像机设置</button></td></tr>`).join('')}</tbody></table></div>`:empty('尚无摄像头','可以先扫描当前局域网，或手动填写设备地址。');
 }
 function renderSites() {
   const sites=state.sites.filter(s=>!$('#site-filter').value||s.id===$('#site-filter').value);
@@ -170,3 +172,15 @@ $('#camera-form').elements.sourceKind.onchange=syncEndpoint;$('#camera-form').el
 handleForm('asset-form','/api/assets',d=>({...d,lensCount:Number(d.lensCount)}));handleForm('recorder-form','/api/recorders',d=>({...d,port:Number(d.port)}));
 
 $('#onvif-read').onclick=async()=>{const f=$('#camera-form'),b=$('#onvif-read');if(f.elements.sourceKind.value!=='direct'){toast('读取镜头配置时请使用直接连接摄像头');return;}b.disabled=true;$('#onvif-result').textContent='正在读取…';try{const d=await api('/api/onvif',{id:f.elements.id.value,host:f.elements.host.value,port:80,username:f.elements.username.value,password:f.elements.password.value});const groups=Map.groupBy?Map.groupBy(d.profiles,p=>p.sourceToken):d.profiles.reduce((m,p)=>{const k=p.sourceToken;m.set(k,[...(m.get(k)||[]),p]);return m;},new Map());$('#onvif-result').innerHTML='';const note=document.createElement('p');note.className='description';note.textContent=[d.device.Manufacturer,d.device.Model].join(' · ')+' / '+groups.size+' 个视频源';$('#onvif-result').append(note);for(const [source,profiles]of groups){profiles.sort((a,b)=>Number(b.width)*Number(b.height)-Number(a.width)*Number(a.height));const btn=document.createElement('button');btn.type='button';btn.className='quiet';btn.textContent=source+' · '+profiles[0].width+' × '+profiles[0].height;btn.onclick=()=>{f.elements.mainPath.value=profiles[0].path;f.elements.subPath.value=(profiles[1]||profiles[0]).path;f.elements.port.value=profiles[0].port;f.elements.model.value=d.device.Model;toast('已填入该视频源的主、子码流路径，请保存');};$('#onvif-result').append(btn);}}catch(e){$('#onvif-result').textContent=e.message;}finally{b.disabled=false;}};
+
+function validateNewPassword(values){
+  if(values.newPassword!==values.confirmPassword)throw Error('两次输入的新密码不一致');
+  if(values.newPassword===values.currentPassword)throw Error('新密码不能与当前密码相同');
+  if(values.newPassword.length<8||values.newPassword.length>128)throw Error('密码需要 8 至 128 个字符');
+}
+$('#account-password').onclick=()=>{if(!loggedIn)return;const f=$('#password-form');f.reset();f.querySelector('.form-error').textContent='';$('#password-account').textContent='当前账号：'+currentUser.username;$('#password-dialog').showModal();};
+$('#password-form').addEventListener('submit',async e=>{
+  e.preventDefault();const f=e.currentTarget,b=f.querySelector('[type=submit]');b.disabled=true;
+  try{const data=formValues(f);validateNewPassword(data);await api('/api/account/password',{currentPassword:data.currentPassword,newPassword:data.newPassword});clearPrivateView();await auth();toast('密码已修改，请用新密码重新登录');}
+  catch(err){if(!err.stale)f.querySelector('.form-error').textContent=err.message;}finally{b.disabled=false;}
+});
diff --git a/web/camera-settings.js b/web/camera-settings.js
new file mode 100644
index 0000000..80b848d
--- /dev/null
+++ b/web/camera-settings.js
@@ -0,0 +1,56 @@
+'use strict';
+let cameraSettingsContext=null,cameraSettingsGeneration=0;
+const videoLabels={resolution:'分辨率',fps:'帧率（帧/秒）',bitrate:'码率上限（kbps）',quality:'画质等级',gop:'关键帧间隔（帧）'};
+function clearCameraSettings(){cameraSettingsGeneration++;cameraSettingsContext=null;for(const id of ['camera-settings-info','camera-image-fields','camera-video-fields','camera-settings-status'])$('#'+id).replaceChildren();}
+function settingsInput(key,label,value,rule){
+  const enumLabel=v=>key==='dayNight'?({AUTO:'自动日夜',ON:'日间（红外截止）',OFF:'夜间（红外通过）'})[v]||v:({ON:'开启',OFF:'关闭',AUTO:'自动',MANUAL:'手动'})[v]||v;
+  return `<label>${esc(label)}${rule.choices?`<select name="${esc(key)}">${rule.choices.map(v=>`<option value="${esc(v)}" ${v===value?'selected':''}>${esc(enumLabel(v))}</option>`).join('')}</select>`:`<input name="${esc(key)}" type="number" value="${esc(value)}" min="${rule.min}" max="${rule.max}" step="${['fps','bitrate','gop'].includes(key)?'1':'any'}" required><small>${rule.min}–${rule.max}</small>`}</label>`;
+}
+function renderCameraSettings(data){
+  const d=data.device;
+  $('#camera-settings-info').innerHTML=`<dl>${[['厂商',d.Manufacturer],['型号',d.Model],['固件',d.FirmwareVersion],['镜头视频源',data.source],['码流配置',data.profile],['设备报告编码',data.video.codec]].map(([k,v])=>`<div><dt>${esc(k)}</dt><dd>${esc(v||'未提供')}</dd></div>`).join('')}</dl>`;
+  $('#camera-image-fields').innerHTML=Object.entries(data.imaging).map(([k,r])=>settingsInput(k,r.label,r.value,r)).join('')||'<p class="description">设备未提供可调图像参数。</p>';
+  $('#camera-video-fields').innerHTML=Object.entries(data.video.options).map(([k,r])=>settingsInput(k,videoLabels[k],data.video.values[k],r)).join('')||'<p class="description">设备未提供可调码流参数。</p>';
+  $('#camera-settings-status').textContent=data.notes.join('；');
+  $('#camera-image-form button[type=submit]').disabled=!Object.keys(data.imaging).length;
+  $('#camera-video-form button[type=submit]').disabled=!Object.keys(data.video.options).length;
+}
+async function loadCameraSettings(){
+  if(!cameraSettingsContext)return;const context=cameraSettingsContext,generation=++cameraSettingsGeneration;
+  context.settings=null;context.quality=$('#camera-settings-quality').value;
+  $('#camera-settings-status').textContent='正在读取设备实际参数…';
+  $$('#camera-settings-dialog form button[type=submit]').forEach(b=>b.disabled=true);$('#camera-settings-reload').disabled=true;
+  try{const result=await api('/api/camera/settings?'+new URLSearchParams({camera:context.id,quality:context.quality}));
+    if(generation!==cameraSettingsGeneration||context!==cameraSettingsContext||!loggedIn)return;context.settings=result;renderCameraSettings(result);
+  }catch(e){if(!e.stale&&generation===cameraSettingsGeneration)$('#camera-settings-status').textContent=e.message;}
+  finally{if(generation===cameraSettingsGeneration)$('#camera-settings-reload').disabled=false;}
+}
+async function openCameraSettings(id){
+  if(!isAdmin())return;clearCameraSettings();cameraSettingsContext={id,settings:null,quality:'main'};
+  $('#camera-settings-title').textContent=(state.cameras.find(c=>c.id===id)?.name||'摄像机')+' · 参数设置';$('#camera-settings-quality').value='main';$('#camera-settings-quality').disabled=false;
+  $('#camera-settings-dialog').showModal();await loadCameraSettings();
+}
+function changedCameraValues(form,section,settings){
+  const rules=section==='imaging'?settings.imaging:settings.video.options,values={};
+  for(const [key,rule]of Object.entries(rules)){
+    const value=rule.choices?form.elements[key].value:Number(form.elements[key].value);
+    if(value!==(section==='imaging'?rule.value:settings.video.values[key]))values[key]=value;
+  }
+  return values;
+}
+async function saveCameraSettings(form,section){
+  const context=cameraSettingsContext;if(!context?.settings)return;
+  const values=changedCameraValues(form,section,context.settings);if(!Object.keys(values).length){toast('参数没有变化');return;}
+  const generation=++cameraSettingsGeneration;
+  $$('#camera-settings-dialog form button[type=submit]').forEach(b=>b.disabled=true);$('#camera-settings-reload').disabled=true;$('#camera-settings-quality').disabled=true;
+  $('#camera-settings-status').textContent='正在保存并读取设备返回值…';
+  try{const result=await api('/api/camera/settings',{camera:context.id,quality:context.quality,revision:context.settings.revision,section,values});
+    if(generation!==cameraSettingsGeneration||context!==cameraSettingsContext||!loggedIn)return;
+    context.settings=result.settings;if(result.settings)renderCameraSettings(result.settings);$('#camera-settings-status').textContent=result.message;toast(result.message);
+  }catch(e){if(!e.stale&&generation===cameraSettingsGeneration){context.settings=null;$('#camera-settings-status').textContent=e.message+'。请点击“重新读取”核对设备状态。';}}
+  finally{if(generation===cameraSettingsGeneration){$('#camera-settings-reload').disabled=false;$('#camera-settings-quality').disabled=false;}}
+}
+for(const [id,section]of [['camera-image-form','imaging'],['camera-video-form','video']])$('#'+id).addEventListener('submit',e=>{e.preventDefault();saveCameraSettings(e.currentTarget,section);});
+$('#camera-settings-reload').onclick=loadCameraSettings;$('#camera-settings-quality').onchange=loadCameraSettings;
+$('#camera-settings-dialog').addEventListener('close',clearCameraSettings);
+document.addEventListener('click',e=>{const b=e.target.closest('[data-camera-settings]');if(b)openCameraSettings(b.dataset.cameraSettings);});
diff --git a/web/family-events.js b/web/family-events.js
index 4c912ac..187b1c0 100644
--- a/web/family-events.js
+++ b/web/family-events.js
@@ -35,7 +35,7 @@ function openFamilyEvent(id){
   const e=(family.events||[]).find(e=>e.id===id);if(!e)return;
   // All content is plain text. External reports are links, never embedded HTML.
   const safeSource=/^https?:\/\//i.test(e.sourceUrl||'')?e.sourceUrl:'';
-  $('#event-detail-content').innerHTML=`<div class="event-detail-meta"><time>${esc(ZhaoCalendar.describe(e.eventDate))}</time><span class="badge">${esc(eventStatus(e))}</span></div><h2 id="event-detail-title">${esc(e.title)}</h2>${e.summary?`<p class="event-lead">${esc(e.summary)}</p>`:''}<div class="event-associated"><span class="description">关联人物</span>${e.personIds.length?e.personIds.map(id=>`<button class="quiet" data-event-person="${esc(id)}">${esc(personName(id))} ↗</button>`).join(''):'<span>全家记事</span>'}</div><div class="family-prose event-article">${esc(e.body||'此条记事暂未填写详细正文。')}</div>${safeSource?`<a class="button secondary event-source" href="${esc(safeSource)}" target="_blank" rel="noopener noreferrer">阅读原始报道${e.sourceName?' · '+esc(e.sourceName):''} ↗</a>`:e.sourceName?`<p class="description">资料来源：${esc(e.sourceName)}</p>`:''}<p class="description event-updated">最近整理：${esc(new Date(e.updatedAt).toLocaleString())}</p>${family.canEdit?`<button data-edit-event="${e.id}">编辑这条记事</button>`:''}`;
+  $('#event-detail-content').innerHTML=`<div class="event-detail-meta"><time>${esc(ZhaoCalendar.describe(e.eventDate))}</time><span class="badge">${esc(eventStatus(e))}</span></div><h2 id="event-detail-title">${esc(e.title)}</h2>${e.summary?`<p class="event-lead">${esc(e.summary)}</p>`:''}<div class="event-associated"><span class="description">关联人物</span>${e.personIds.length?e.personIds.map(id=>`<button class="quiet" data-event-person="${esc(id)}">${esc(personName(id))} ↗</button>`).join(''):'<span>全家记事</span>'}</div><div class="family-prose event-article">${esc(e.body||'此条记事暂未填写详细正文。')}</div>${safeSource?`<a class="button secondary event-source" href="${esc(safeSource)}" target="_blank" rel="noopener noreferrer">阅读原始报道${e.sourceName?' · '+esc(e.sourceName):''} ↗</a>`:e.sourceName?`<p class="description">资料来源：${esc(e.sourceName)}</p>`:''}<p class="description event-updated">最近整理：${esc(new Date(e.updatedAt).toLocaleString())}</p>${family.canEdit?`<button data-edit-event="${e.id}">编辑这条记事</button><button class="quiet" data-history-kind="event" data-history-id="${e.id}">修改记录</button>`:''}`;
   $('#event-detail-dialog').showModal();
 }
 function editFamilyEvent(id,personId=''){
diff --git a/web/family-history.js b/web/family-history.js
new file mode 100644
index 0000000..96f510a
--- /dev/null
+++ b/web/family-history.js
@@ -0,0 +1,62 @@
+'use strict';
+const historyFields={name:'姓名',alias:'别名',gender:'性别',lifeStatus:'在世情况',birthDate:'出生日期',deathDate:'去世日期',birthplace:'籍贯',biography:'生平',note:'备注',archived:'归档',fromId:'关系一方',toId:'关系另一方',kind:'关系类型',lineage:'亲子属性',active:'有效关系',title:'记事标题',eventDate:'发生日期',summary:'摘要',body:'正文',personIds:'关联人物',status:'发布状态',sourceName:'资料来源',sourceUrl:'报道链接'};
+let historyContext=null,historySelection=null,historyGeneration=0,historyDetailGeneration=0;
+function clearFamilyHistory(){historyGeneration++;historyDetailGeneration++;historyContext=null;historySelection=null;for(const id of ['history-list','history-detail','history-error'])$('#'+id).replaceChildren();}
+function historyValue(key,value){
+  if(value===undefined||value===null||value==='')return '未填写';
+  if(key==='personIds')return value.length?value.map(personName).join('、'):'全家';
+  if(key==='fromId'||key==='toId')return personName(value);
+  if(typeof value==='boolean')return value?'是':'否';
+  const labels={male:'男',female:'女',unknown:'待确认',alive:'在世',deceased:'已故',draft:'草稿',published:'已发布',parent:'父母 → 子女',spouse:'配偶',biological:'亲生',adoptive:'收养',step:'继亲',unspecified:'未注明'};
+  return ['gender','lifeStatus','status','kind','lineage'].includes(key)?labels[value]||String(value):String(value);
+}
+async function openFamilyHistory(kind,id){
+  if(!family.canEdit)return;clearFamilyHistory();
+  if($('#event-detail-dialog').open)$('#event-detail-dialog').close();
+  historyContext={kind,id,revision:family.revision,nextBefore:null};
+  $('#history-title').textContent='修改记录 · '+({person:personName(id),link:'亲属关系',event:family.events.find(e=>e.id===id)?.title||'家族记事'})[kind];
+  $('#history-dialog').showModal();await loadFamilyHistory();
+}
+async function loadFamilyHistory(more=false){
+  if(!historyContext)return;const context=historyContext,generation=++historyGeneration,b=$('#history-more');b.disabled=true;
+  try{const result=await api('/api/family/history?'+new URLSearchParams({kind:context.kind,id:context.id,...(more&&context.nextBefore?{before:context.nextBefore}:{})}));
+    if(!loggedIn||generation!==historyGeneration||context!==historyContext)return;
+    context.nextBefore=result.nextBefore;if(!more)context.revision=result.revision;
+    const html=result.items.map(c=>`<button class="history-entry quiet" data-history-change="${c.revision}"><strong>版本 ${c.revision} · ${c.restoredFrom?'恢复旧版':c.created?'创建记录':'修改记录'}</strong><span>${esc(c.actor)} · ${esc(new Date(c.at).toLocaleString())}</span><small>${esc(c.fields.map(f=>historyFields[f]||f).join('、')||'内容未变化')}</small></button>`).join('');
+    if(more)$('#history-list').insertAdjacentHTML('beforeend',html);else $('#history-list').innerHTML=html||'<p class="description">暂无修改记录。此功能从本次升级开始记录；升级前的内容会在下一次修改时保留。</p>';
+    b.hidden=!context.nextBefore;$('#history-error').textContent='';
+  }catch(e){if(!e.stale&&generation===historyGeneration)$('#history-error').textContent=e.message;}finally{if(generation===historyGeneration)b.disabled=false;}
+}
+async function showFamilyChange(revision){
+  const context=historyContext,generation=++historyDetailGeneration;historySelection=null;$('#history-detail').textContent='正在读取版本…';
+  try{const c=await api('/api/family/change?revision='+revision);
+    if(!loggedIn||generation!==historyDetailGeneration||context!==historyContext)return;
+    historySelection=c;
+    const keys=Object.keys(historyFields).filter(k=>k in c.after||k in (c.before||{}));
+    $('#history-detail').innerHTML=`<h3>版本 ${c.revision} 的内容对照</h3><p class="description">恢复只更新这条记录。已发生的后续修改仍可在历史中查阅。</p><div class="history-columns">${['before','after'].map(side=>`<section><h4>${side==='before'?'本次修改前':'本次修改后'}</h4>${c[side]?`<dl>${keys.map(k=>`<div class="${JSON.stringify(c.before?.[k])!==JSON.stringify(c.after[k])?'history-changed':''}"><dt>${esc(historyFields[k])}</dt><dd>${esc(historyValue(k,c[side][k]))}</dd></div>`).join('')}</dl><button class="secondary" data-history-prepare="${side}">选择恢复${side==='before'?'修改前':'此版本'}</button>`:'<p>创建前没有记录。</p>'}</section>`).join('')}</div><div id="history-confirm" hidden></div>`;
+    $('#history-error').textContent='';
+  }catch(e){if(!e.stale&&generation===historyDetailGeneration)$('#history-detail').textContent=e.message;}
+}
+function prepareFamilyRestore(side){
+  const c=historySelection;if(!c?.[side])return;const value=c[side],box=$('#history-confirm');
+  box.hidden=false;box.innerHTML=`<p>将用版本 ${c.revision} ${side==='before'?'修改前':'修改后'}的内容替换这条记录的当前内容。${c.kind==='event'?'恢复后记事状态：'+esc(eventStatus(value))+'。':''}</p><button data-history-restore="${side}">确认恢复并生成新版本</button><button class="quiet" id="history-cancel-restore">取消恢复</button>`;box.scrollIntoView({block:'nearest'});
+}
+async function restoreFamilyChange(side){
+  const context=historyContext,c=historySelection;if(!context||!c?.[side])return;
+  const generation=historyDetailGeneration;$$('#history-confirm button').forEach(b=>b.disabled=true);
+  try{await api('/api/family/restore',{changeRevision:c.revision,side,revision:context.revision});
+    if(!loggedIn||context!==historyContext)return;
+    historyDetailGeneration++;historySelection=null;$('#history-detail').replaceChildren();
+    await loadFamilyHistory();const loaded=await loadFamily();if(loggedIn)toast(loaded?'已恢复，原有版本仍保留在修改记录中':'已恢复，读取最新家谱失败，请重新载入');
+  }catch(e){if(!e.stale&&context===historyContext){$('#history-error').textContent=e.message;if(e.status===409)$('#history-error').append(document.createTextNode('。请关闭并重新打开修改记录，核对当前内容后再选择恢复。'));}}
+  finally{if(generation===historyDetailGeneration)$$('#history-confirm button').forEach(b=>b.disabled=false);}
+}
+$('#history-more').onclick=()=>loadFamilyHistory(true);
+$('#history-dialog').addEventListener('close',clearFamilyHistory);
+document.addEventListener('click',e=>{const b=e.target.closest('button');if(!b)return;
+  if(b.dataset.historyKind)openFamilyHistory(b.dataset.historyKind,b.dataset.historyId);
+  if(b.dataset.historyChange)showFamilyChange(Number(b.dataset.historyChange));
+  if(b.dataset.historyPrepare)prepareFamilyRestore(b.dataset.historyPrepare);
+  if(b.dataset.historyRestore)restoreFamilyChange(b.dataset.historyRestore);
+  if(b.id==='history-cancel-restore')$('#history-confirm').hidden=true;
+});
diff --git a/web/family-map.css b/web/family-map.css
index 90ee03d..ea59fae 100644
--- a/web/family-map.css
+++ b/web/family-map.css
@@ -6,3 +6,15 @@
 @media(max-width:600px){.family-event-intro{flex-wrap:wrap;padding:8px 15px 15px}.family-event-filters{padding:15px;gap:10px}.family-event-filters label{font-size:11px}.family-event-filters .check{line-height:1.8;flex-wrap:nowrap}.family-timeline{padding:0 15px 22px}.timeline-event{gap:8px}.timeline-event>time{font-size:10px;flex-basis:55px}.timeline-event:before{left:62px}.timeline-event:after{left:58px}.timeline-event-body{padding:13px;margin-left:9px}.timeline-event-body>strong{font-size:15px}.family-view-tabs button{padding:8px 10px}#event-detail-title{font-size:22px}.event-detail-meta{flex-wrap:wrap}.event-editor-actions{flex-wrap:wrap}}
 
 .family-workspace.family-expanded{position:fixed;inset:0;z-index:8;}
+
+/* Versions remain readable on a small screen, including long family narratives. */
+#history-dialog{width:min(1040px,94vw)}
+#history-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;max-height:260px;overflow:auto;margin:16px 0}
+.history-entry{text-align:left;display:flex;flex-direction:column;align-items:flex-start;gap:6px;white-space:normal}
+.history-entry small,.history-entry span{color:var(--muted);font-size:12px}
+.history-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}
+.history-columns section{min-width:0}.history-columns dd{white-space:pre-wrap;overflow-wrap:anywhere;max-height:240px;overflow:auto}
+.history-columns dl>div{padding:10px;border-bottom:1px solid #30434a}.history-changed{background:#27443e66;border-radius:8px}
+#history-confirm{padding:16px;border:1px solid #74d0b7;border-radius:12px;margin-top:18px}
+#history-confirm button{margin:6px}#history-error:empty{display:none}
+@media(max-width:650px){.history-columns{grid-template-columns:1fr}#history-list{max-height:200px}}
diff --git a/web/family.js b/web/family.js
index d126fef..6649997 100644
--- a/web/family.js
+++ b/web/family.js
@@ -5,7 +5,7 @@ let family={people:[],links:[],events:[],revision:0,canEdit:false}, users=[], fo
 const familyMap=new FamilyMap($('#family-tree'),id=>selectFamilyPerson(id));
 const relationships=['本人','配偶','哥哥','弟弟','姐姐','妹妹','爸爸','妈妈','爷爷','奶奶','姥爷','姥姥','伯伯','叔叔','姑姑','舅舅','姨妈','儿子','女儿','孙子','孙女','外孙','外孙女','曾孙','曾孙女','玄孙','玄孙女','祖先','后裔','亲友','同事'];
 $('#relationship-choices').innerHTML=relationships.map(r=>`<option value="${esc(r)}"></option>`).join('');
-function clearFamilyState(){closeFamilyFullscreen();familyGeneration++;family={people:[],links:[],events:[],revision:0,canEdit:false};users=[];focusPerson='';familyMap.reset();if(typeof resetFamilyEvents==='function')resetFamilyEvents(true);$('#family-map-note').textContent='';$('#family-count').textContent='';$('#family-reference').replaceChildren();delete $('#family-reference').dataset.initialized;$('#family-search').value='';$('#family-archived').checked=false;$('#family-find').hidden=true;}
+function clearFamilyState(){if(typeof clearFamilyHistory==='function')clearFamilyHistory();closeFamilyFullscreen();familyGeneration++;family={people:[],links:[],events:[],revision:0,canEdit:false};users=[];focusPerson='';familyMap.reset();if(typeof resetFamilyEvents==='function')resetFamilyEvents(true);$('#family-map-note').textContent='';$('#family-count').textContent='';$('#family-reference').replaceChildren();delete $('#family-reference').dataset.initialized;$('#family-search').value='';$('#family-archived').checked=false;$('#family-find').hidden=true;}
 function personName(id){return family.people.find(p=>p.id===id)?.name||'未关联';}
 function peopleOptions(blank=true){return (blank?'<option value="">尚未关联</option>':'')+family.people.map(p=>`<option value="${p.id}">${esc(p.name+(p.archived?'（已归档）':''))}</option>`).join('');}
 function fillForm(form,data){form.reset();form.querySelector('.form-error').textContent='';for(const [k,v]of Object.entries(data)){const e=form.elements[k];if(!e)continue;if(e.type==='checkbox')e.checked=!!v;else e.value=v??'';}}
@@ -40,7 +40,7 @@ function renderFamily(){
   $('#family-detail').classList.toggle('is-self',p?.id===family.selfId&&!!p);
   if(!p){$('#family-detail').innerHTML='<h3>人物档案</h3><p class="description">点击图中的人物查看生平，或录入第一位人物。</p>';return;}
   const edges=family.links.filter(e=>e.fromId===p.id||e.toId===p.id);
-  $('#family-detail').innerHTML=`<div class="section-head"><div><span class="eyebrow">人物档案</span><h2>${esc(p.name)}</h2></div>${family.canEdit?`<button data-edit-person="${p.id}" class="quiet">编辑人物</button>`:''}</div><p class="description">相对于 ${esc(personName(reference))}：${esc(p.id===reference&&p.id!==family.selfId?'参照人物':ZhaoKinship.describe(family.people,family.links,reference,p.id))}</p><dl>${[['别名',p.alias],['性别',{male:'男',female:'女',unknown:'待确认'}[p.gender]],['在世情况',{alive:'在世',deceased:'已故',unknown:'待确认'}[p.lifeStatus]],['出生日期',ZhaoCalendar.describe(p.birthDate)],...(p.lifeStatus==='deceased'?[['去世日期',ZhaoCalendar.describe(p.deathDate)]]:[]),['籍贯 / 出生地',p.birthplace]].map(([k,v])=>`<div><dt>${k}</dt><dd>${esc(v||'待补充')}</dd></div>`).join('')}</dl><h3>生平与记载</h3><p class="family-prose">${esc(p.biography||'尚未记录生平')}</p><p class="description family-prose">${esc(p.note||'')}</p><div class="section-head"><h3>亲属关系</h3>${family.canEdit?'<button id="add-relation" class="quiet">＋ 连接亲属</button>':''}</div>${edges.map(e=>`<div class="family-link"><span>${esc(relationText(e))}<small>${esc(({biological:'亲生',adoptive:'收养',step:'继亲',unspecified:''}[e.lineage]||'')+' '+(e.note||''))}</small></span>${family.canEdit?`<button class="quiet" data-edit-relation="${e.id}">编辑</button>`:''}</div>`).join('')||'<p class="description">尚未连接亲属。</p>'}`;
+  $('#family-detail').innerHTML=`<div class="section-head"><div><span class="eyebrow">人物档案</span><h2>${esc(p.name)}</h2></div>${family.canEdit?`<button data-edit-person="${p.id}" class="quiet">编辑人物</button><button class="quiet" data-history-kind="person" data-history-id="${p.id}">修改记录</button>`:''}</div><p class="description">相对于 ${esc(personName(reference))}：${esc(p.id===reference&&p.id!==family.selfId?'参照人物':ZhaoKinship.describe(family.people,family.links,reference,p.id))}</p><dl>${[['别名',p.alias],['性别',{male:'男',female:'女',unknown:'待确认'}[p.gender]],['在世情况',{alive:'在世',deceased:'已故',unknown:'待确认'}[p.lifeStatus]],['出生日期',ZhaoCalendar.describe(p.birthDate)],...(p.lifeStatus==='deceased'?[['去世日期',ZhaoCalendar.describe(p.deathDate)]]:[]),['籍贯 / 出生地',p.birthplace]].map(([k,v])=>`<div><dt>${k}</dt><dd>${esc(v||'待补充')}</dd></div>`).join('')}</dl><h3>生平与记载</h3><p class="family-prose">${esc(p.biography||'尚未记录生平')}</p><p class="description family-prose">${esc(p.note||'')}</p><div class="section-head"><h3>亲属关系</h3>${family.canEdit?'<button id="add-relation" class="quiet">＋ 连接亲属</button>':''}</div>${edges.map(e=>`<div class="family-link"><span>${esc(relationText(e))}<small>${esc(({biological:'亲生',adoptive:'收养',step:'继亲',unspecified:''}[e.lineage]||'')+' '+(e.note||''))}</small></span>${family.canEdit?`<button class="quiet" data-edit-relation="${e.id}">编辑</button><button class="quiet" data-history-kind="link" data-history-id="${e.id}">历史</button>`:''}</div>`).join('')||'<p class="description">尚未连接亲属。</p>'}`;
   if(typeof personEventSummary==='function')$('#family-detail').insertAdjacentHTML('beforeend',personEventSummary(p.id));
   $('#family-detail').insertAdjacentHTML('afterbegin',`${p.id===family.selfId?'<div class="family-self-heading">◎ 本人 · 当前账号关联人物</div>':''}<button type="button" id="family-show-person" class="quiet family-back-to-map">在图中定位</button>`);
 }
diff --git a/web/index.html b/web/index.html
index 517e991..132c305 100644
--- a/web/index.html
+++ b/web/index.html
@@ -4,6 +4,8 @@
   <meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
   <title>赵府智家 · 家庭空间</title><link rel="icon" type="image/png" href="/zhao-icon.png"><link rel="apple-touch-icon" href="/zhao-icon.png"><meta name="theme-color" content="#10191d"><link rel="stylesheet" href="/style.css?v=__ASSET_VERSION__"><link rel="stylesheet" href="/family-map.css?v=__ASSET_VERSION__">
   <script defer src="/vendor/hls.min.js?v=__ASSET_VERSION__"></script><script defer src="/live-player.js?v=__ASSET_VERSION__"></script><script defer src="/kinship.js?v=__ASSET_VERSION__"></script><script defer src="/family-graph.js?v=__ASSET_VERSION__"></script><script defer src="/calendar.js?v=__ASSET_VERSION__"></script><script defer src="/app.js?v=__ASSET_VERSION__"></script><script defer src="/monitor.js?v=__ASSET_VERSION__"></script><script defer src="/date-fields.js?v=__ASSET_VERSION__"></script><script defer src="/family-map.js?v=__ASSET_VERSION__"></script><script defer src="/family.js?v=__ASSET_VERSION__"></script><script defer src="/family-events.js?v=__ASSET_VERSION__"></script>
+  <script defer src="/family-history.js?v=__ASSET_VERSION__"></script>
+  <script defer src="/camera-settings.js?v=__ASSET_VERSION__"></script>
 </head>
 <body>
   <aside class="sidebar">
@@ -19,7 +21,7 @@
       <button data-page="storage">▤ <span>录像与存储</span></button>
     </nav>
     <div class="side-note"><span class="dot"></span> 自有部署 · 本地存储<p>按空间组织画面<br>让每一段记录有处可寻</p></div>
-    <p id="current-user" class="description"></p><button id="logout" class="quiet">退出登录</button>
+    <p id="current-user" class="description"></p><button id="account-password" class="quiet" hidden>修改我的密码</button><button id="logout" class="quiet">退出登录</button>
   </aside>
   <main>
     <header><div><div class="eyebrow">ZHAOFU HOME / FAMILY</div><h1 id="page-title">实时画面</h1><p id="page-note">从一个空间，看到每一个位置。</p></div><div class="header-status"><span id="service-status" class="badge">等待连接</span><span id="clock"></span></div></header>
@@ -74,6 +76,9 @@
   <dialog id="relation-dialog"><form id="relation-form"><div class="dialog-heading"><h2>连接人物关系</h2><button type="button" class="quiet" data-close="relation-dialog">关闭</button></div><input name="id" type="hidden"><input name="revision" type="hidden"><div class="form-grid"><label>关系类型<select name="kind"><option value="parent">父母 → 子女</option><option value="spouse">配偶 ↔ 配偶</option></select></label><label>亲子属性<select name="lineage"><option value="unspecified">未注明</option><option value="biological">亲生</option><option value="adoptive">收养</option><option value="step">继亲</option></select></label><label>父母一方 / 配偶一方<select name="fromId" required></select></label><label>子女 / 另一位配偶<select name="toId" required></select></label><label class="full">关系备注<input name="note" maxlength="300"></label><label class="check"><input name="active" type="checkbox" checked>关系有效（取消后保留记录，可恢复）</label></div><p class="description">每条亲子关系连接一位父母与一位子女。录入另一位父母时，再建立一条关系。</p><p class="form-error"></p><div class="dialog-footer"><button type="submit">保存关系</button></div></form></dialog>
   <dialog id="event-dialog" aria-labelledby="event-editor-title"><form id="event-form"><div class="dialog-heading"><h2 id="event-editor-title">写一则家族记事</h2><button type="button" class="quiet" data-close="event-dialog">关闭</button></div><input name="id" type="hidden"><input name="revision" type="hidden"><div class="form-grid"><label class="full">记事标题 *<input name="title" required maxlength="160" placeholder="用一句话概括这件事"></label><fieldset class="family-date full" data-date-field="eventDate"><legend>事情发生的日期 *</legend><input name="eventDate" type="hidden"><label>历法<select data-calendar aria-label="记事日期历法"><option value="solar">公历</option><option value="lunar">农历</option></select></label><label>日期<input data-date-value aria-label="记事日期" required type="text" inputmode="numeric" placeholder="YYYY-MM-DD" maxlength="10"></label><label data-leap-label class="check" hidden><input data-date-leap type="checkbox">闰月</label><output data-date-hint aria-live="polite"></output></fieldset><fieldset class="full"><legend>关联人物（可多选）</legend><input id="event-person-search" type="search" placeholder="查找要关联的亲人" aria-label="查找关联人物"><div id="event-person-choices"></div><p class="description">未选择人物时记为全家记事。每位关联人物的档案都可以追溯到这条记事。</p></fieldset><label class="full">摘要<textarea name="summary" maxlength="400" rows="2" placeholder="简要说明这件事"></textarea></label><label class="full">详细记载<textarea name="body" maxlength="12000" rows="7" placeholder="记录经过、意义、长辈口述或资料出处。可分段书写。"></textarea></label><label>报道 / 资料来源<input name="sourceName" maxlength="160" placeholder="例如：报刊名称、个人博客"></label><label>原始报道链接<input name="sourceUrl" type="url" maxlength="2000" placeholder="https://…"></label><label class="check full"><input name="archived" type="checkbox">归档记事（保留内容，可恢复）</label></div><p class="description">正式发布后，有家谱查看权限的账号即可在时间线看到；草稿只对有编辑权限的人可见。</p><p class="form-error" role="status"></p><div class="dialog-footer event-editor-actions"><button type="submit" data-save-event value="draft" class="secondary">保存草稿</button><button type="submit" data-publish-event value="published">发布记事</button><button type="submit" data-withdraw-event value="draft" class="secondary" hidden>撤回为草稿</button></div></form></dialog>
   <dialog id="event-detail-dialog" aria-labelledby="event-detail-title"><div class="dialog-heading"><span class="eyebrow">FAMILY CHRONICLE</span><button type="button" class="quiet" data-close="event-detail-dialog">关闭</button></div><article id="event-detail-content"></article></dialog>
+  <dialog id="history-dialog" aria-labelledby="history-title"><div class="dialog-heading"><h2 id="history-title">修改记录</h2><button type="button" class="quiet" data-close="history-dialog">关闭</button></div><p class="description">人物、关系与记事每次保存都会留存版本。仅有家谱编辑权限的账号可查阅和恢复。</p><p id="history-error" class="form-error" role="status"></p><div id="history-list"></div><button id="history-more" class="quiet" hidden>加载更早记录</button><article id="history-detail"></article></dialog>
+  <dialog id="password-dialog" aria-labelledby="password-title"><form id="password-form"><div class="dialog-heading"><h2 id="password-title">修改我的密码</h2><button type="button" class="quiet" data-close="password-dialog">关闭</button></div><p id="password-account" class="description"></p><label>当前密码<input name="currentPassword" type="password" required maxlength="128" autocomplete="current-password"></label><label>新密码<input name="newPassword" type="password" required minlength="8" maxlength="128" autocomplete="new-password"></label><label>再次输入新密码<input name="confirmPassword" type="password" required minlength="8" maxlength="128" autocomplete="new-password"></label><p class="description">保存后，这个账号在所有设备上都需要用新密码重新登录。</p><p class="form-error" role="status"></p><div class="dialog-footer"><button type="submit">保存新密码</button></div></form></dialog>
+  <dialog id="camera-settings-dialog" aria-labelledby="camera-settings-title"><div class="dialog-heading"><h2 id="camera-settings-title">摄像机参数</h2><button class="quiet" data-close="camera-settings-dialog">关闭</button></div><div class="section-head"><label>设置码流<select id="camera-settings-quality"><option value="main">主码流</option><option value="sub">子码流</option></select></label><button id="camera-settings-reload" class="quiet">重新读取</button></div><div id="camera-settings-info"></div><p id="camera-settings-status" class="form-error" role="status"></p><form id="camera-image-form"><h3>图像与日夜模式</h3><p class="description">作用于当前物理镜头，主、子码流共用这些图像参数。</p><div id="camera-image-fields" class="form-grid"></div><div class="dialog-footer"><button type="submit" disabled>保存图像参数</button></div></form><form id="camera-video-form"><h3>码流与清晰度</h3><p class="description">作用于上方选定的码流。保存后画面可能短暂重连，录像机也会使用调整后的码流。本页保留原有视频编码。</p><div id="camera-video-fields" class="form-grid"></div><div class="dialog-footer"><button type="submit" disabled>保存码流参数</button></div></form><details><summary>其他萤石功能的接入情况</summary><ul><li>云台方向微调：在实时画面的“云台”中使用，按设备能力启用。</li><li>实时声音与全屏：通过画面播放器控制。</li><li>双向对讲、智能追踪、声光告警、隐私遮蔽、设备翻转、云录像和消息推送：当前尚未接入，请使用萤石 App。</li><li>录像机原有录像：仍通过录像机或原厂 App 查看；本系统已支持本机额外录像的回放。</li></ul><p class="description">功能按设备实际开放能力逐项接入，型号与固件不同可能有差异。</p></details></dialog>
   <div id="toast" role="status" hidden></div>
 </body>
 </html>