权限管理：接入项目级权限矩阵

新增项目级角色权限矩阵，覆盖 PM、CRA、PV、IMP、QA 等项目角色，并通过迁移表持久化各业务模块的读写权限。

后端将参与者、合同费用、物资、启动、里程碑、风险问题、监查稽查、FAQ、共享库、文件版本等接口接入矩阵校验，修复审计日志导出权限和登录 502 的依赖导入问题。

前端新增权限管理页面和项目路由权限映射，按矩阵控制导航显示、直接访问拦截、操作按钮启停，并限制管理后台仅 admin 和授权 PM 可进入。

补充后端权限归一化与接口静态测试、前端路由/权限工具/权限管理页面/工作台等回归测试。

backend/app/api/v1/startup.py

@@ -3,7 +3,7 @@ import uuid
 from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.core.deps import get_cra_site_scope, get_current_user, get_db_session, require_study_member
+from app.core.deps import get_cra_site_scope, get_current_user, get_db_session, require_study_permission
 from app.crud import audit as audit_crud
 from app.crud import site as site_crud
 from app.crud import startup as startup_crud
@@ -53,7 +53,7 @@ async def _ensure_site_active(db: AsyncSession, site_id: uuid.UUID | None):
     "/feasibility",
     response_model=StartupFeasibilityRead,
     status_code=status.HTTP_201_CREATED,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def create_feasibility(
     study_id: uuid.UUID,
@@ -83,7 +83,7 @@ async def create_feasibility(
 @router.get(
     "/feasibility",
     response_model=list[StartupFeasibilityRead],
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "read"))],
 )
 async def list_feasibilities(
     study_id: uuid.UUID,
@@ -102,7 +102,7 @@ async def list_feasibilities(
 @router.get(
     "/feasibility/{record_id}",
     response_model=StartupFeasibilityRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "read"))],
 )
 async def get_feasibility(
     study_id: uuid.UUID,
@@ -123,7 +123,7 @@ async def get_feasibility(
 @router.patch(
     "/feasibility/{record_id}",
     response_model=StartupFeasibilityRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def update_feasibility(
     study_id: uuid.UUID,
@@ -157,7 +157,7 @@ async def update_feasibility(
 @router.delete(
     "/feasibility/{record_id}",
     status_code=status.HTTP_204_NO_CONTENT,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def delete_feasibility(
     study_id: uuid.UUID,
@@ -190,7 +190,7 @@ async def delete_feasibility(
     "/ethics",
     response_model=StartupEthicsRead,
     status_code=status.HTTP_201_CREATED,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def create_ethics(
     study_id: uuid.UUID,
@@ -220,7 +220,7 @@ async def create_ethics(
 @router.get(
     "/ethics",
     response_model=list[StartupEthicsRead],
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "read"))],
 )
 async def list_ethics(
     study_id: uuid.UUID,
@@ -239,7 +239,7 @@ async def list_ethics(
 @router.get(
     "/ethics/{record_id}",
     response_model=StartupEthicsRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "read"))],
 )
 async def get_ethics(
     study_id: uuid.UUID,
@@ -260,7 +260,7 @@ async def get_ethics(
 @router.patch(
     "/ethics/{record_id}",
     response_model=StartupEthicsRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def update_ethics(
     study_id: uuid.UUID,
@@ -294,7 +294,7 @@ async def update_ethics(
 @router.delete(
     "/ethics/{record_id}",
     status_code=status.HTTP_204_NO_CONTENT,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_ethics", "write"))],
 )
 async def delete_ethics(
     study_id: uuid.UUID,
@@ -327,7 +327,7 @@ async def delete_ethics(
     "/kickoff",
     response_model=KickoffMeetingRead,
     status_code=status.HTTP_201_CREATED,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "write"))],
 )
 async def create_kickoff(
     study_id: uuid.UUID,
@@ -357,7 +357,7 @@ async def create_kickoff(
 @router.get(
     "/kickoff",
     response_model=list[KickoffMeetingRead],
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "read"))],
 )
 async def list_kickoffs(
     study_id: uuid.UUID,
@@ -376,7 +376,7 @@ async def list_kickoffs(
 @router.get(
     "/kickoff/{meeting_id}",
     response_model=KickoffMeetingRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "read"))],
 )
 async def get_kickoff(
     study_id: uuid.UUID,
@@ -397,7 +397,7 @@ async def get_kickoff(
 @router.patch(
     "/kickoff/{meeting_id}",
     response_model=KickoffMeetingRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "write"))],
 )
 async def update_kickoff(
     study_id: uuid.UUID,
@@ -432,7 +432,7 @@ async def update_kickoff(
     "/training-authorizations",
     response_model=TrainingAuthorizationRead,
     status_code=status.HTTP_201_CREATED,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "write"))],
 )
 async def create_training_authorization(
     study_id: uuid.UUID,
@@ -462,7 +462,7 @@ async def create_training_authorization(
 @router.get(
     "/training-authorizations",
     response_model=list[TrainingAuthorizationRead],
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "read"))],
 )
 async def list_training_authorizations(
     study_id: uuid.UUID,
@@ -481,7 +481,7 @@ async def list_training_authorizations(
 @router.get(
     "/training-authorizations/{record_id}",
     response_model=TrainingAuthorizationRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "read"))],
 )
 async def get_training_authorization(
     study_id: uuid.UUID,
@@ -502,7 +502,7 @@ async def get_training_authorization(
 @router.patch(
     "/training-authorizations/{record_id}",
     response_model=TrainingAuthorizationRead,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "write"))],
 )
 async def update_training_authorization(
     study_id: uuid.UUID,
@@ -536,7 +536,7 @@ async def update_training_authorization(
 @router.delete(
     "/training-authorizations/{record_id}",
     status_code=status.HTTP_204_NO_CONTENT,
-    dependencies=[Depends(require_study_member())],
+    dependencies=[Depends(require_study_permission("startup_auth", "write"))],
 )
 async def delete_training_authorization(
     study_id: uuid.UUID,