Add reviewed duplicate account consolidation and prevent duplicate imports

backend/app/routers/identities.py

@@ -3,6 +3,7 @@ from pydantic import BaseModel, ConfigDict, Field, field_validator
 
 from ..auth import require_admin
 from ..services.identity_review import confirm_identities, review_identities, resolve_identity, repair_identity
+from ..services.duplicate_accounts import repair_duplicates
 
 router = APIRouter(prefix="/admin/identities", tags=["admin"], dependencies=[Depends(require_admin)])
 
@@ -73,3 +74,26 @@ async def check_repair(payload: RepairResolution, response: Response):
 async def confirm_repair(payload: RepairConfirmation, response: Response, admin: dict = Depends(require_admin)):
     response.headers['Cache-Control'] = 'no-store'
     return await repair_identity(payload.user_id, payload.jellyfin_user_id, payload.revision, admin, payload.create_seerr)
+
+
+class DuplicateCheck(BaseModel):
+    model_config = ConfigDict(extra='forbid')
+    user_id: int = Field(gt=0, strict=True)
+    keep_id: int | None = Field(default=None, gt=0, strict=True)
+
+
+class DuplicateConfirmation(DuplicateCheck):
+    keep_id: int = Field(gt=0, strict=True)
+    revision: str = Field(pattern=r'^[a-f0-9]{64}$')
+
+
+@router.post('/duplicates/check')
+async def check_duplicates(payload: DuplicateCheck, response: Response):
+    response.headers['Cache-Control'] = 'no-store'
+    return await repair_duplicates(payload.user_id, payload.keep_id)
+
+
+@router.post('/duplicates/confirm')
+async def confirm_duplicates(payload: DuplicateConfirmation, response: Response, admin: dict = Depends(require_admin)):
+    response.headers['Cache-Control'] = 'no-store'
+    return await repair_duplicates(payload.user_id, payload.keep_id, payload.revision, admin)