TEST-BE-CAL-001 record calendar backend test completion

plans/TASKLIST.md

@@ -348,11 +348,11 @@
 
 ## K. Tests / Integration(按子模块分别补,不混做)
 
-- [ ] TEST-BE-CAL-001:补 Calendar backend 测试(backend tests only)
-  - [ ] 模型测试
-  - [ ] API 测试
+- [x] TEST-BE-CAL-001:补 Calendar backend 测试(backend tests only)
+  - [x] 模型测试
+  - [x] API 测试
   - [x] overlap / warning / materialize 测试
-  - [ ] Blocker: `HarborForge.Backend/app/schemas/calendar.py` 在 Python 3.12 + Pydantic 2.5 下因 `from __future__ import annotations` 与 `date/time/datetime` 字段名冲突触发递归建模错误，导致 `conftest.py -> app.main -> calendar router` 导入失败；已先修复 schema 类型别名问题，后续继续补 Calendar API / model tests
+  - [x] Blocker resolved: `HarborForge.Backend/app/schemas/calendar.py` 的 Python 3.12 + Pydantic 2.5 递归建模问题已通过 schema 类型别名修复，本次已继续补齐 Calendar API / model tests
 
 - [x] TEST-BE-PR-001:补 Proposal / Essential backend 测试(backend tests only)
   - [x] Essential CRUD