Mark Task 4.5 as complete in instructions.md

instructions.md

@@ -168,41 +168,7 @@ For each task completed:
 
 #### Task 4.4: Update WebSocket API Endpoints to Use Key ✅ (November 27, 2025)
 
----
-
-#### Task 4.5: Update Pydantic Models to Use Key
-
-**Files:**
-
--   `src/server/models/anime.py`
--   `src/server/models/download.py`
-
-**Objective:** Ensure all Pydantic models use `key` as the series identifier.
-
-**Steps:**
-
-1. Open `src/server/models/anime.py`
-2. Review all models (e.g., `AnimeDetail`, `AnimeSummary`, `SearchResult`)
-3. Ensure `key` is the primary identifier field
-4. Add `folder` as optional metadata field
-5. Update field validators to validate `key` format
-6. Repeat for `src/server/models/download.py`
-7. Update `DownloadRequest` and related models
-8. Update all docstrings and field descriptions
-
-**Success Criteria:**
-
--   [ ] All anime models use `key` as identifier
--   [ ] All download models use `key` as identifier
--   [ ] Field validators ensure `key` format is correct
--   [ ] `folder` is optional metadata
--   [ ] All model tests pass
-
-**Test Command:**
-
-```bash
-conda run -n AniWorld python -m pytest tests/unit/ -k "models" -v
-```
+#### Task 4.5: Update Pydantic Models to Use Key ✅ (November 27, 2025)
 
 ---
 
@@ -802,7 +768,7 @@ conda run -n AniWorld python -m pytest tests/integration/test_identifier_consist
     -   [x] Task 4.2: Update Download API Endpoints ✅ **Completed November 27, 2025**
     -   [x] Task 4.3: Update Queue API Endpoints ✅ **Completed November 27, 2025**
     -   [x] Task 4.4: Update WebSocket API Endpoints ✅ **Completed November 27, 2025**
-    -   [ ] Task 4.5: Update Pydantic Models
+    -   [x] Task 4.5: Update Pydantic Models ✅ **Completed November 27, 2025**
     -   [ ] Task 4.6: Update Validators
     -   [ ] Task 4.7: Update Template Helpers
 -   [ ] Phase 5: Frontend