新增：健康事件时间线接入真实数据（T2-14 时间线半边）

- 时间线页：occurred_at DESC cursor 分页 + 月分组组头，四态齐备；
  六类事件经 RecordTypeDot 映射（增补喂养/洗护/测量三型，色族复用
  已审计色对），类型 TagPill 双通道
- 事件录入表单：六类类型选择器、金额以元录入/整数分传输（money.dart
  换算）、UTC 时间戳约定与体重表单一致
- 事件编辑页：顶层 PATCH 差量提交（title/notes/amountCents + version），
  40902 照 T2-12 模式自动经时间线检索取新 version 重提（保留输入）
- 档案页：月度花费卡接 summary.monthlyExpense（分→元展示）、tz 透传
  设备时区固定偏移（T2-13 遗留③）、健康时间线导航入口
- 埋点：health_record 域 create 三事件 + viewed（recordType=health_event）
  挂通；新增 edit_succeeded/failed 封装（failureReason 含 conflict）
- 测试 224 → 250 全绿（+26）；analyze 0 问题；format 无 diff

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/features/pets/health_event_form_page.dart

@@ -0,0 +1,416 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/semantics.dart';
+import 'package:patbond_flutter/core/network/api_exception.dart';
+import 'package:patbond_flutter/core/theme/app_theme.dart';
+import 'package:patbond_flutter/core/widgets/app_text_field.dart';
+import 'package:patbond_flutter/core/widgets/inline_error_banner.dart';
+import 'package:patbond_flutter/core/widgets/primary_button.dart';
+import 'package:patbond_flutter/core/widgets/record_type_dot.dart';
+import 'package:patbond_flutter/features/pets/health_record_analytics.dart';
+import 'package:patbond_flutter/features/pets/health_record_display.dart';
+import 'package:patbond_flutter/features/pets/money.dart';
+import 'package:patbond_flutter/features/pets/pet_exceptions.dart';
+import 'package:patbond_flutter/features/pets/pet_models.dart';
+import 'package:patbond_flutter/features/pets/pets_repository.dart';
+
+/// 健康事件录入表单页（T2-14）。
+///
+/// - 六类事件类型选择（05 §4.4 类型选择器形态：RecordTypeDot sm + 标签，
+///   图标 + 文字双通道）；类型必选。
+/// - 发生时间默认「现在」，可回选日期（非今日取当日 12:00，与体重表单
+///   同一约定）；提交前转 UTC，ISO 8601 带 Z 上送。
+/// - 金额可选：**UI 以元录入/展示，传输为整数分**（money.dart 换算，
+///   最多两位小数，非法拦截）；后端提交小数 400/40000 兜底。
+/// - 埋点：health_record_create_started/succeeded/failed
+///   （recordType=health_event）。
+class HealthEventFormPage extends StatefulWidget {
+  const HealthEventFormPage({
+    required this.repository,
+    required this.petId,
+    super.key,
+    this.analytics,
+    this.entryPoint = HealthRecordEntryPoint.recordList,
+  });
+
+  final PetsRepository repository;
+  final String petId;
+  final HealthRecordAnalytics? analytics;
+  final HealthRecordEntryPoint entryPoint;
+
+  @override
+  State<HealthEventFormPage> createState() => _HealthEventFormPageState();
+}
+
+class _HealthEventFormPageState extends State<HealthEventFormPage> {
+  final _titleCtrl = TextEditingController();
+  final _amountCtrl = TextEditingController();
+  final _notesCtrl = TextEditingController();
+
+  HealthEventType? _type;
+  DateTime _occurredDate = DateTime.now();
+  String? _typeError;
+  String? _titleError;
+  String? _amountError;
+  String? _formError;
+  bool _submitting = false;
+
+  bool _startedFired = false;
+  int _attemptSeq = 0;
+  late final DateTime _openedAt;
+
+  @override
+  void initState() {
+    super.initState();
+    _openedAt = DateTime.now();
+  }
+
+  @override
+  void dispose() {
+    _titleCtrl.dispose();
+    _amountCtrl.dispose();
+    _notesCtrl.dispose();
+    super.dispose();
+  }
+
+  void _markStarted() {
+    if (_startedFired) return;
+    _startedFired = true;
+    widget.analytics?.createStarted(
+      recordType: HealthRecordType.healthEvent,
+      entryPoint: widget.entryPoint,
+    );
+  }
+
+  void _trackFailed(HealthRecordFailureReason reason, [int? errorCode]) {
+    widget.analytics?.createFailed(
+      recordType: HealthRecordType.healthEvent,
+      reason: reason,
+      attemptSeq: _attemptSeq,
+      errorCode: errorCode,
+    );
+  }
+
+  void _showFormError(String message) {
+    setState(() => _formError = message);
+    SemanticsService.sendAnnouncement(
+      View.of(context),
+      message,
+      TextDirection.ltr,
+    );
+  }
+
+  /// 发生时刻：今日取此刻，历史日期取当日 12:00（本地），提交前转 UTC
+  /// （与体重表单同一约定，规避无时区后缀的解析歧义）。
+  DateTime _occurredAt() {
+    final now = DateTime.now();
+    final sameDay =
+        _occurredDate.year == now.year &&
+        _occurredDate.month == now.month &&
+        _occurredDate.day == now.day;
+    final local = sameDay
+        ? now
+        : DateTime(
+            _occurredDate.year,
+            _occurredDate.month,
+            _occurredDate.day,
+            12,
+          );
+    return local.toUtc();
+  }
+
+  Future<void> _submit() async {
+    if (_submitting) return;
+    _attemptSeq++;
+    final typeError = _type == null ? '请选择事件类型' : null;
+    final titleError = _titleCtrl.text.trim().isEmpty ? '请输入标题' : null;
+    final amountText = _amountCtrl.text.trim();
+    final amountError =
+        amountText.isNotEmpty && parseYuanToCents(amountText) == null
+        ? '金额格式不正确，最多两位小数'
+        : null;
+    if (typeError != null || titleError != null || amountError != null) {
+      setState(() {
+        _typeError = typeError;
+        _titleError = titleError;
+        _amountError = amountError;
+      });
+      _trackFailed(HealthRecordFailureReason.validationError);
+      return;
+    }
+
+    setState(() {
+      _submitting = true;
+      _formError = null;
+    });
+    try {
+      final notes = _notesCtrl.text.trim();
+      final record = await widget.repository.createHealthEvent(
+        widget.petId,
+        CreateHealthEventRequest(
+          eventType: _type!,
+          occurredAt: _occurredAt(),
+          title: _titleCtrl.text.trim(),
+          notes: notes.isEmpty ? null : notes,
+          // 元 → 整数分换算，DTO 层保持整数分（开发计划 §4.3）。
+          amountCents: amountText.isEmpty ? null : parseYuanToCents(amountText),
+        ),
+      );
+      widget.analytics?.createSucceeded(
+        recordType: HealthRecordType.healthEvent,
+        durationMs: DateTime.now().difference(_openedAt).inMilliseconds,
+      );
+      if (mounted) Navigator.of(context).pop(record);
+    } on PetAccessDeniedException {
+      if (!mounted) return;
+      _showFormError('你没有权限为该宠物添加记录');
+      _trackFailed(HealthRecordFailureReason.permissionDenied, 40300);
+    } on PetNotFoundException {
+      if (!mounted) return;
+      final navigator = Navigator.of(context);
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(const SnackBar(content: Text('宠物不存在或已被删除')));
+      _trackFailed(HealthRecordFailureReason.notFound, 40401);
+      navigator.pop();
+    } on ApiRateLimitException {
+      if (!mounted) return;
+      _showFormError('操作过于频繁，请稍后再试');
+      _trackFailed(HealthRecordFailureReason.rateLimited);
+    } on ApiBusinessException catch (error) {
+      if (!mounted) return;
+      final isParam = error.code == ApiCodes.paramError;
+      _showFormError(isParam ? '请检查填写内容后重试' : '保存失败，请稍后重试');
+      _trackFailed(
+        isParam
+            ? HealthRecordFailureReason.validationError
+            : HealthRecordFailureReason.serverError,
+        error.code,
+      );
+    } on ApiNetworkException {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: const Text('网络异常，请检查网络后重试'),
+          action: SnackBarAction(label: '重试', onPressed: _submit),
+        ),
+      );
+      _trackFailed(HealthRecordFailureReason.networkError);
+    } on SessionExpiredException {
+      // 会话失效：认证状态机自动回登录页。
+    } finally {
+      if (mounted) setState(() => _submitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: Colors.transparent,
+        elevation: 0,
+        foregroundColor: AppColors.ink,
+        title: const Text('记录健康事件'),
+        centerTitle: true,
+        titleTextStyle: const TextStyle(
+          color: AppColors.ink,
+          fontSize: 16,
+          fontWeight: FontWeight.w800,
+        ),
+      ),
+      body: SafeArea(
+        child: ListView(
+          padding: const EdgeInsets.fromLTRB(20, 8, 20, 30),
+          children: [
+            const Text(
+              '事件类型',
+              style: TextStyle(
+                color: AppColors.inkSoft,
+                fontSize: 13,
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+            const SizedBox(height: 8),
+            _typeSelector(),
+            if (_typeError != null) ...[
+              const SizedBox(height: 6),
+              Text(
+                _typeError!,
+                style: const TextStyle(color: AppColors.error, fontSize: 12),
+              ),
+            ],
+            const SizedBox(height: 18),
+            AppTextField(
+              label: '标题（如：皮肤检查）',
+              controller: _titleCtrl,
+              prefixIcon: Icons.title_outlined,
+              errorText: _titleError,
+              enabled: !_submitting,
+              textInputAction: TextInputAction.next,
+              onChanged: (_) {
+                _markStarted();
+                if (_titleError != null || _formError != null) {
+                  setState(() {
+                    _titleError = null;
+                    _formError = null;
+                  });
+                }
+              },
+            ),
+            const SizedBox(height: 14),
+            ListTile(
+              shape: RoundedRectangleBorder(
+                side: const BorderSide(color: AppColors.border),
+                borderRadius: BorderRadius.circular(AppRadius.lg),
+              ),
+              tileColor: AppColors.surface,
+              leading: const Icon(Icons.event_outlined, color: AppColors.muted),
+              title: const Text('发生日期', style: TextStyle(fontSize: 14)),
+              subtitle: Text(
+                dateToJson(_occurredDate),
+                style: const TextStyle(color: AppColors.inkSoft, fontSize: 12),
+              ),
+              trailing: const Icon(
+                Icons.calendar_month_outlined,
+                color: AppColors.muted,
+              ),
+              enabled: !_submitting,
+              onTap: () async {
+                final now = DateTime.now();
+                final value = await showDatePicker(
+                  context: context,
+                  initialDate: _occurredDate,
+                  firstDate: DateTime(1990),
+                  lastDate: now,
+                );
+                if (value != null && mounted) {
+                  _markStarted();
+                  setState(() => _occurredDate = value);
+                }
+              },
+            ),
+            const SizedBox(height: 14),
+            AppTextField(
+              label: '金额（元，可选）',
+              controller: _amountCtrl,
+              prefixIcon: Icons.payments_outlined,
+              errorText: _amountError,
+              helperText: '以元填写，最多两位小数，如 128.50',
+              enabled: !_submitting,
+              keyboardType: const TextInputType.numberWithOptions(
+                decimal: true,
+              ),
+              textInputAction: TextInputAction.next,
+              onChanged: (_) {
+                _markStarted();
+                if (_amountError != null || _formError != null) {
+                  setState(() {
+                    _amountError = null;
+                    _formError = null;
+                  });
+                }
+              },
+            ),
+            const SizedBox(height: 14),
+            AppTextField(
+              label: '备注（可选）',
+              controller: _notesCtrl,
+              prefixIcon: Icons.sticky_note_2_outlined,
+              enabled: !_submitting,
+              textInputAction: TextInputAction.done,
+              onChanged: (_) => _markStarted(),
+              onSubmitted: (_) => _submit(),
+            ),
+            if (_formError != null) ...[
+              const SizedBox(height: 16),
+              InlineErrorBanner(message: _formError!),
+            ],
+            const SizedBox(height: 24),
+            PrimaryButton(
+              label: '保存记录',
+              isLoading: _submitting,
+              onPressed: _submit,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 六类类型选择器（05 §4.4：RecordTypeDot sm 上、标签下；
+  /// 选中 surfaceTint 底 + primaryDark 标签，未选中 inkSoft）。
+  Widget _typeSelector() {
+    return Wrap(
+      spacing: 8,
+      runSpacing: 8,
+      children: [
+        for (final type in HealthEventType.values)
+          _TypeUnit(
+            type: type,
+            selected: _type == type,
+            enabled: !_submitting,
+            onTap: () {
+              _markStarted();
+              setState(() {
+                _type = type;
+                _typeError = null;
+                _formError = null;
+              });
+            },
+          ),
+      ],
+    );
+  }
+}
+
+class _TypeUnit extends StatelessWidget {
+  const _TypeUnit({
+    required this.type,
+    required this.selected,
+    required this.enabled,
+    required this.onTap,
+  });
+
+  final HealthEventType type;
+  final bool selected;
+  final bool enabled;
+  final VoidCallback onTap;
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      color: selected ? AppColors.surfaceTint : AppColors.surface,
+      shape: RoundedRectangleBorder(
+        side: BorderSide(
+          color: selected ? AppColors.primaryStrong : AppColors.border,
+        ),
+        borderRadius: BorderRadius.circular(AppRadius.md),
+      ),
+      child: InkWell(
+        onTap: enabled ? onTap : null,
+        borderRadius: BorderRadius.circular(AppRadius.md),
+        child: Container(
+          constraints: const BoxConstraints(minWidth: 64, minHeight: 52),
+          padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              RecordTypeDot(
+                type: recordTypeForHealthEvent(type),
+                size: RecordTypeDotSize.sm,
+              ),
+              const SizedBox(height: 4),
+              Text(
+                healthEventTypeLabel(type),
+                style: TextStyle(
+                  fontSize: 11,
+                  fontWeight: selected ? FontWeight.w700 : FontWeight.w600,
+                  color: selected ? AppColors.primaryDark : AppColors.inkSoft,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}