feat: 新增勘察明细管理与修改密码功能

lib/features/auth/data/auth_api.dart

@@ -55,4 +55,12 @@ class AuthApi {
     },
     parse: (d) => WorkerInfo.fromJson((d as Map).cast<String, dynamic>()),
   );
+
+  /// 修改登录密码。后端 `/worker-app/profile` 收到 `password` 即更新密码哈希。
+  Future<ApiResponse<WorkerInfo>> changePassword(String password) =>
+      _client.put<WorkerInfo>(
+        '/worker-app/profile',
+        body: {'password': password},
+        parse: (d) => WorkerInfo.fromJson((d as Map).cast<String, dynamic>()),
+      );
 }

lib/features/auth/presentation/change_password_page.dart

@@ -0,0 +1,208 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
+
+import '../../../core/network/api_response.dart';
+import '../../../core/theme/app_colors.dart';
+import '../../../core/theme/app_dimens.dart';
+import '../../../core/theme/app_typography.dart';
+import '../../../shared/widgets/app_feedback.dart';
+import '../../../shared/widgets/x_card.dart';
+import '../../../shared/widgets/x_common.dart';
+import '../../../shared/widgets/x_top_bar.dart';
+import '../application/session_controller.dart';
+
+/// 修改登录密码页。
+///
+/// 后端 `/worker-app/profile` 传 `password` 即更新密码哈希，
+/// 因此本页只校验新密码的长度与两次输入一致，不要求原密码。
+class ChangePasswordPage extends ConsumerStatefulWidget {
+  const ChangePasswordPage({super.key});
+
+  @override
+  ConsumerState<ChangePasswordPage> createState() => _ChangePasswordPageState();
+}
+
+class _ChangePasswordPageState extends ConsumerState<ChangePasswordPage> {
+  final _password = TextEditingController();
+  final _confirm = TextEditingController();
+
+  bool _loading = false;
+  String _error = '';
+
+  @override
+  void initState() {
+    super.initState();
+    _password.addListener(_onChanged);
+    _confirm.addListener(_onChanged);
+  }
+
+  @override
+  void dispose() {
+    _password.dispose();
+    _confirm.dispose();
+    super.dispose();
+  }
+
+  void _onChanged() => setState(() {});
+
+  bool get _canSubmit =>
+      _password.text.length >= 6 && _password.text == _confirm.text;
+
+  Future<void> _handleSubmit() async {
+    if (!_canSubmit) {
+      setState(() => _error = '新密码至少 6 位，且两次输入需一致');
+      return;
+    }
+
+    setState(() {
+      _loading = true;
+      _error = '';
+    });
+    try {
+      final res = await ref
+          .read(authApiProvider)
+          .changePassword(_password.text);
+      if (!mounted) return;
+      if (!res.isOk) {
+        setState(() => _error = res.message.isEmpty ? '修改失败' : res.message);
+        return;
+      }
+      showAppToast('密码修改成功', success: true);
+      context.pop();
+    } on ApiException catch (e) {
+      if (mounted) setState(() => _error = e.message);
+    } catch (_) {
+      if (mounted) setState(() => _error = '网络异常，请稍后重试');
+    } finally {
+      if (mounted) setState(() => _loading = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: XPageShell(
+        topBar: XTopBar.nav(title: '修改密码', onBack: () => context.pop()),
+        child: SingleChildScrollView(
+          padding: const EdgeInsets.fromLTRB(16, 20, 16, 40),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            children: [
+              XCard(
+                padding: const EdgeInsets.all(20),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.stretch,
+                  children: [
+                    _Field(
+                      label: '新密码',
+                      hint: '至少 6 位',
+                      controller: _password,
+                      required: true,
+                    ),
+                    const SizedBox(height: 18),
+                    _Field(
+                      label: '确认新密码',
+                      hint: '请再次输入新密码',
+                      controller: _confirm,
+                      required: true,
+                    ),
+                  ],
+                ),
+              ),
+              const SizedBox(height: 20),
+              XPrimaryButton(
+                label: '确认修改',
+                height: 56,
+                radius: AppRadius.xl,
+                loading: _loading,
+                onPressed: _canSubmit ? _handleSubmit : null,
+                shadows: AppShadows.primaryButton,
+              ),
+              if (_error.isNotEmpty)
+                Padding(
+                  padding: const EdgeInsets.only(top: 14),
+                  child: Text(
+                    _error,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(fontSize: 13, color: AppColors.error),
+                  ),
+                ),
+              const SizedBox(height: 16),
+              const Text(
+                '如忘记密码，可联系平台管理员重置为手机号后 6 位。',
+                textAlign: TextAlign.center,
+                style: TextStyle(fontSize: 13, color: AppColors.textMuted),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+/// 表单输入项，与注册页保持同一套视觉语言。
+class _Field extends StatelessWidget {
+  const _Field({
+    required this.label,
+    required this.hint,
+    required this.controller,
+    this.required = false,
+  });
+
+  final String label;
+  final String hint;
+  final TextEditingController controller;
+  final bool required;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Row(
+          children: [
+            Text(
+              label,
+              style: AppTypography.bodySm.copyWith(
+                color: AppColors.onSurfaceVariant,
+              ),
+            ),
+            if (required)
+              const Text(
+                ' *',
+                style: TextStyle(fontSize: 13, color: AppColors.error),
+              ),
+          ],
+        ),
+        const SizedBox(height: 8),
+        Container(
+          height: 48,
+          padding: const EdgeInsets.symmetric(horizontal: 14),
+          decoration: BoxDecoration(
+            color: AppColors.surfaceBright,
+            border: Border.all(color: AppColors.borderSoft),
+            borderRadius: BorderRadius.circular(AppRadius.lg),
+          ),
+          child: TextField(
+            controller: controller,
+            obscureText: true,
+            style: const TextStyle(fontSize: 15, color: AppColors.onSurface),
+            cursorColor: AppColors.primary,
+            decoration: InputDecoration(
+              isDense: true,
+              border: InputBorder.none,
+              counterText: '',
+              hintText: hint,
+              hintStyle: const TextStyle(
+                fontSize: 15,
+                color: AppColors.textPlaceholder,
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}