feat(profile): implement profile flow

CHANGELOG.md

@@ -16,6 +16,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Authenticated tests catalog screen for the `/tests` root tab, reusing the existing tests catalog slice and adding local search plus multi-select category filtering UI before navigating to the debug screen.
 - Workout execution feature for authenticated users, including execution DTOs/mappers, repository, Cubit, fullscreen route, local rest countdown, dialogs, and the warmup/training UI backed by workout start/progression/complete endpoints.
 - Authenticated test attempt flow for `/tests/attempt/:testingId`, including auth API client methods, repository wiring, fullscreen attempt route, and the attempt UI mirrored from the Fitness Start flow.
+- Profile user section for the authenticated `/profile` tab, including `ProfileApiClient`, profile repository/failures, user section Cubits, edit-profile and change-password dialogs, avatar upload flow, and the first profile screen UI based on the provided layout.
+- Profile statistics section for the authenticated `/profile` tab, including dedicated statistics API client/repository, focused `/profile` history snapshot mapping, statistics Cubit/state flow, chart widgets, selectors, history dialog, and widget coverage for the integrated UI.
+- Profile current phase section for the authenticated `/profile` tab, reusing the bootstrap profile phase snapshot plus aggregate statistics frequency summary to render the read-only phase block without a standalone phase slice.
+- Introduce personal parameters section for the authenticated `/profile` tab, including canonical `user-parameters` read/update flow, editable profile form card, weekly-goal save support, and selective workouts overview refresh when goal, equipment, or level changes regenerate the personal plan.
+- Add profile bottom section for the authenticated `/profile` tab, including logout and delete-profile confirmation actions plus direct links to the bundled legal documents.
+- Profile subscription section for the authenticated `/profile` tab, including active and empty subscription states, catalog entrypoints, profile-local subscription card hydration by `subscriptionId`, cancel-subscription confirmation flow and profile page refresh after cancellation.
+- Profile saved cards section for the authenticated `/profile` tab, including dedicated cards API/repository flow, saved-cards list rendering, add-card dialog with manual card form, default-card command, delete-card confirmation, and local refresh after successful actions.
+- Authenticated subscriptions catalog screen, including dedicated subscriptions route, catalog Cubit, card UI with normalized remote images, and a profile CTA for opening available subscription plans.
+- Authenticated subscription details and payment flow, including a dedicated details route, catalog-backed item resolution, manual-card payment dialog, and redirect to `/profile` after successful purchase.
 
 ### Changed
 
@@ -28,12 +37,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Workouts overview and details app bars now reuse a dedicated `appBarTitle` text token instead of local per-page style overrides.
 - Authenticated tests catalog cards now open the real test attempt flow instead of the debug screen.
 - `TestingCatalogCard` now skips the extra spacing above category chips when a test has no categories.
+- The `/profile` root tab now renders the real user-section screen instead of the previous placeholder, reuses the authenticated session user as an initial seed, and keeps forgot-password routes reachable from the change-password dialog for authenticated users.
+- The `/profile` screen now bootstraps statistics and history from the authenticated profile flow: user bootstrap reuses `/api/profile`, charts switch between dedicated volume/frequency/trend endpoints, and the `История` modal reads active subscription plus the latest workout/test from the cached profile snapshot instead of issuing extra requests.
+- Profile statistics internals were reorganized into dedicated `profile/data/dto/stats` and `profile/presentation/widgets/stats` folders, while repository/cubit/widget tests were aligned with the new structure and shared fixtures.
+- Shared `OptionButton` now supports canonical `large` and `small` size presets, and the profile statistics plus history-tab controls use the compact 42px variant from the mockups.
+- Profile dialogs now support per-dialog content padding and optional barrier dismissal, allowing the statistics history modal to match the provided sheet behavior without affecting non-dismissible dialogs.
+- The debug route is now a static centered placeholder again and no longer owns a separate logout flow.
+- `AppCard` now supports an optional fixed height, allowing specialized screens like the subscriptions catalog to match exact card mockups without introducing a forked card component.
+- Subscriptions catalog cards now open a dedicated subscription details screen, and `AppInputField` now supports hidden labels for grouped payment-field layouts without requiring widget forks.
 
 ### Breaking
 
 - Shared test-attempt transport DTOs were renamed from guest-prefixed names to neutral request/response models because the same payload shapes are now reused by both guest and authenticated flows.
 - Test-attempt DI wiring now resolves separate guest and authenticated repository bindings while keeping the shared `TestAttemptCubit` and domain contract unchanged.
 
+### Fixed
+
+- Profile frequency statistics now handle weekly payloads without `short_label`, keep dense period charts readable across `week`, `month`, `3 months`, `6 months`, and `year`, and clarify non-daily X-axis scales with short `нед.` / `мес.` labels.
+- Profile statistics dropdown menus now size to their content and render above surrounding UI instead of being clipped by the statistics card or overlapping incorrectly with lower screen sections.
+- Profile history and statistics copy now matches the latest profile mockups more closely, including `Активность` / `Завершено` labels, the separate `Средняя оценка:` summary label, and shortened cross-year period labels like `25-26`.
+
 ## [0.3.1] - 2026-03-25
 
 ### Added

ios/Podfile.lock

@@ -5,6 +5,8 @@ PODS:
   - flutter_secure_storage_darwin (10.0.0):
     - Flutter
     - FlutterMacOS
+  - image_picker_ios (0.0.1):
+    - Flutter
   - sqflite_darwin (0.0.4):
     - Flutter
     - FlutterMacOS
@@ -13,6 +15,7 @@ DEPENDENCIES:
   - connectivity_plus (from `.symlinks/plugins/connectivity_plus/ios`)
   - Flutter (from `Flutter`)
   - flutter_secure_storage_darwin (from `.symlinks/plugins/flutter_secure_storage_darwin/darwin`)
+  - image_picker_ios (from `.symlinks/plugins/image_picker_ios/ios`)
   - sqflite_darwin (from `.symlinks/plugins/sqflite_darwin/darwin`)
 
 EXTERNAL SOURCES:
@@ -22,13 +25,16 @@ EXTERNAL SOURCES:
     :path: Flutter
   flutter_secure_storage_darwin:
     :path: ".symlinks/plugins/flutter_secure_storage_darwin/darwin"
+  image_picker_ios:
+    :path: ".symlinks/plugins/image_picker_ios/ios"
   sqflite_darwin:
     :path: ".symlinks/plugins/sqflite_darwin/darwin"
 
 SPEC CHECKSUMS:
   connectivity_plus: cb623214f4e1f6ef8fe7403d580fdad517d2f7dd
   Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
   flutter_secure_storage_darwin: acdb3f316ed05a3e68f856e0353b133eec373a23
+  image_picker_ios: e0ece4aa2a75771a7de3fa735d26d90817041326
   sqflite_darwin: 20b2a3a3b70e43edae938624ce550a3cbf66a3d0
 
 PODFILE CHECKSUM: 3c63482e143d1b91d2d2560aee9fb04ecc74ac7e

lib/core/constants/app_assets.dart

@@ -14,13 +14,21 @@ abstract final class AppAssets {
   static const iconSearch = 'search';
   static const iconFilter = 'filter';
   static const iconClose = 'close';
+  static const iconCloseVariant = 'close_variant';
+  static const iconNotification = 'notification';
   static const iconBadFace = 'bad_face';
   static const iconNormalFace = 'normal_face';
   static const iconGoodFace = 'good_face';
+  static const iconArrowDown = 'arrow_down';
+  static const iconStats = 'stats';
+  static const iconCardBig = 'card_big';
+  static const iconCardSmall = 'card_small';
+  static const iconPlus = 'plus';
 
   // Images.
   static const imageFigure = 'figure';
   static const imageLine = 'line';
+  static const imageLineVariant = 'line_variant';
 
   // Legal documents.
   static const legalPrivacyPolicy = 'assets/legal/privacy_policy.txt';