diff --git a/apps/api/app/api/routes/asset_libraries.py b/apps/api/app/api/routes/asset_libraries.py
index ed42e4903..54018327b 100644
--- a/apps/api/app/api/routes/asset_libraries.py
+++ b/apps/api/app/api/routes/asset_libraries.py
@@ -2,7 +2,7 @@ from fastapi import APIRouter, Depends
 
 from app.dependencies import get_asset_library_repository
 from app.schemas.asset_library import AssetLibraryResponse, CreateAssetLibraryRequest, ListAssetLibrariesResponse
-from packages.adapters.sqlalchemy_impl import SQLAlchemyAssetLibraryRepository
+from typing import Any
 from packages.application import CreateAssetLibraryCommand, CreateAssetLibraryUseCase, ListAssetLibrariesUseCase
 from packages.domain import AssetLibraryKind
 
@@ -25,7 +25,7 @@ def _to_asset_library_response(item) -> AssetLibraryResponse:
 def list_asset_libraries(
     project_id: str,
     kind: str | None = None,
-    asset_library_repository: SQLAlchemyAssetLibraryRepository = Depends(get_asset_library_repository),
+    asset_library_repository: Any = Depends(get_asset_library_repository),
 ) -> ListAssetLibrariesResponse:
     use_case = ListAssetLibrariesUseCase(asset_library_repository)
     parsed_kind = AssetLibraryKind(kind) if kind else None
@@ -36,7 +36,7 @@ def list_asset_libraries(
 @router.post("", response_model=AssetLibraryResponse)
 def create_asset_library(
     request: CreateAssetLibraryRequest,
-    asset_library_repository: SQLAlchemyAssetLibraryRepository = Depends(get_asset_library_repository),
+    asset_library_repository: Any = Depends(get_asset_library_repository),
 ) -> AssetLibraryResponse:
     use_case = CreateAssetLibraryUseCase(asset_library_repository)
     item = use_case.execute(
diff --git a/apps/api/app/api/routes/assets.py b/apps/api/app/api/routes/assets.py
index 4696a2355..1ab21067d 100644
--- a/apps/api/app/api/routes/assets.py
+++ b/apps/api/app/api/routes/assets.py
@@ -2,7 +2,7 @@ from fastapi import APIRouter, Depends
 
 from app.dependencies import get_asset_repository
 from app.schemas.asset import AssetResponse, CreateAssetRequest, ListAssetsResponse
-from packages.adapters.sqlalchemy_impl import SQLAlchemyAssetRepository
+from typing import Any
 from packages.application import CreateAssetCommand, CreateAssetUseCase, ListAssetsUseCase
 from packages.domain import AssetStatus, ClassificationStatus
 
@@ -36,7 +36,7 @@ def _to_asset_response(item) -> AssetResponse:
 @router.get("", response_model=ListAssetsResponse)
 def list_assets(
     library_id: str,
-    asset_repository: SQLAlchemyAssetRepository = Depends(get_asset_repository),
+    asset_repository: Any = Depends(get_asset_repository),
 ) -> ListAssetsResponse:
     use_case = ListAssetsUseCase(asset_repository)
     items = use_case.execute(library_id)
@@ -46,7 +46,7 @@ def list_assets(
 @router.post("", response_model=AssetResponse)
 def create_asset(
     request: CreateAssetRequest,
-    asset_repository: SQLAlchemyAssetRepository = Depends(get_asset_repository),
+    asset_repository: Any = Depends(get_asset_repository),
 ) -> AssetResponse:
     use_case = CreateAssetUseCase(asset_repository)
     item = use_case.execute(
diff --git a/apps/api/app/api/routes/classification_jobs.py b/apps/api/app/api/routes/classification_jobs.py
index c3e1ff24d..f69172ea3 100644
--- a/apps/api/app/api/routes/classification_jobs.py
+++ b/apps/api/app/api/routes/classification_jobs.py
@@ -5,7 +5,7 @@ from fastapi import APIRouter, Depends, HTTPException
 from app.core.celery_app import celery_app
 from app.dependencies import get_classification_job_repository
 from app.schemas.classification_job import ClassificationJobResponse, SubmitClassificationJobRequest
-from packages.adapters.sqlalchemy_impl import SQLAlchemyClassificationJobRepository
+from typing import Any
 from packages.application import SubmitClassificationJobCommand, SubmitClassificationJobUseCase
 
 router = APIRouter()
@@ -14,7 +14,7 @@ router = APIRouter()
 @router.get("/{job_id}", response_model=ClassificationJobResponse)
 def get_classification_job(
     job_id: str,
-    classification_job_repository: SQLAlchemyClassificationJobRepository = Depends(get_classification_job_repository),
+    classification_job_repository: Any = Depends(get_classification_job_repository),
 ) -> ClassificationJobResponse:
     job = classification_job_repository.get(job_id)
     if job is None:
@@ -34,7 +34,7 @@ def get_classification_job(
 @router.post("", response_model=ClassificationJobResponse)
 def submit_classification_job(
     request: SubmitClassificationJobRequest,
-    classification_job_repository: SQLAlchemyClassificationJobRepository = Depends(get_classification_job_repository),
+    classification_job_repository: Any = Depends(get_classification_job_repository),
 ) -> ClassificationJobResponse:
     use_case = SubmitClassificationJobUseCase(classification_job_repository)
     job = use_case.execute(
diff --git a/apps/api/app/api/routes/generated_videos.py b/apps/api/app/api/routes/generated_videos.py
index 5eebc24e2..ba03d3318 100644
--- a/apps/api/app/api/routes/generated_videos.py
+++ b/apps/api/app/api/routes/generated_videos.py
@@ -7,7 +7,7 @@ from app.schemas.generated_video import (
     GeneratedVideoResponse,
     ListGeneratedVideosResponse,
 )
-from packages.adapters.sqlalchemy_impl import SQLAlchemyGeneratedVideoRepository
+from typing import Any
 from packages.application import (
     GetGeneratedVideoDownloadUrlUseCase,
     GetGeneratedVideoUseCase,
@@ -20,7 +20,7 @@ router = APIRouter()
 @router.get("", response_model=ListGeneratedVideosResponse)
 def list_generated_videos(
     project_id: str,
-    generated_video_repository: SQLAlchemyGeneratedVideoRepository = Depends(get_generated_video_repository),
+    generated_video_repository: Any = Depends(get_generated_video_repository),
 ) -> ListGeneratedVideosResponse:
     use_case = ListGeneratedVideosUseCase(generated_video_repository)
     items = use_case.execute(project_id)
@@ -48,7 +48,7 @@ def list_generated_videos(
 @router.get("/{video_id}", response_model=GeneratedVideoResponse)
 def get_generated_video(
     video_id: str,
-    generated_video_repository: SQLAlchemyGeneratedVideoRepository = Depends(get_generated_video_repository),
+    generated_video_repository: Any = Depends(get_generated_video_repository),
 ) -> GeneratedVideoResponse:
     use_case = GetGeneratedVideoUseCase(generated_video_repository)
     item = use_case.execute(video_id)
@@ -73,7 +73,7 @@ def get_generated_video(
 @router.get("/{video_id}/download-url", response_model=GeneratedVideoDownloadUrlResponse)
 def get_generated_video_download_url(
     video_id: str,
-    generated_video_repository: SQLAlchemyGeneratedVideoRepository = Depends(get_generated_video_repository),
+    generated_video_repository: Any = Depends(get_generated_video_repository),
     storage_service: MinIOService = Depends(get_minio_service),
 ) -> GeneratedVideoDownloadUrlResponse:
     use_case = GetGeneratedVideoDownloadUrlUseCase(generated_video_repository)
diff --git a/apps/api/app/api/routes/generation_tasks.py b/apps/api/app/api/routes/generation_tasks.py
index 1c8cfb9a1..1da9ca981 100644
--- a/apps/api/app/api/routes/generation_tasks.py
+++ b/apps/api/app/api/routes/generation_tasks.py
@@ -4,7 +4,7 @@ from app.core.celery_app import celery_app
 from app.dependencies import get_generation_task_repository, get_generated_video_repository
 from app.schemas.generation_task import CreateGenerationTaskRequest, GenerationTaskResponse
 from app.schemas.generated_video import GeneratedVideoResponse, ListGeneratedVideosResponse
-from packages.adapters.sqlalchemy_impl import SQLAlchemyGeneratedVideoRepository, SQLAlchemyGenerationTaskRepository
+from typing import Any
 from packages.application import (
     CreateGenerationTaskCommand,
     CreateGenerationTaskUseCase,
@@ -18,7 +18,7 @@ router = APIRouter()
 @router.post("/tasks", response_model=GenerationTaskResponse)
 def create_generation_task(
     request: CreateGenerationTaskRequest,
-    generation_task_repository: SQLAlchemyGenerationTaskRepository = Depends(get_generation_task_repository),
+    generation_task_repository: Any = Depends(get_generation_task_repository),
 ) -> GenerationTaskResponse:
     use_case = CreateGenerationTaskUseCase(generation_task_repository)
     task = use_case.execute(
@@ -49,7 +49,7 @@ def create_generation_task(
 @router.get("/tasks/{task_id}", response_model=GenerationTaskResponse)
 def get_generation_task(
     task_id: str,
-    generation_task_repository: SQLAlchemyGenerationTaskRepository = Depends(get_generation_task_repository),
+    generation_task_repository: Any = Depends(get_generation_task_repository),
 ) -> GenerationTaskResponse:
     use_case = GetGenerationTaskUseCase(generation_task_repository)
     task = use_case.execute(task_id)
@@ -72,7 +72,7 @@ def get_generation_task(
 @router.get("/tasks/{task_id}/results", response_model=ListGeneratedVideosResponse)
 def list_generation_results(
     task_id: str,
-    generated_video_repository: SQLAlchemyGeneratedVideoRepository = Depends(get_generated_video_repository),
+    generated_video_repository: Any = Depends(get_generated_video_repository),
 ) -> ListGeneratedVideosResponse:
     use_case = ListGeneratedVideosByTaskUseCase(generated_video_repository)
     items = use_case.execute(task_id)
diff --git a/apps/api/app/api/routes/ingest_jobs.py b/apps/api/app/api/routes/ingest_jobs.py
index 963ee182c..1737c6853 100644
--- a/apps/api/app/api/routes/ingest_jobs.py
+++ b/apps/api/app/api/routes/ingest_jobs.py
@@ -3,7 +3,7 @@ from fastapi import APIRouter, Depends
 from app.core.celery_app import celery_app
 from app.dependencies import get_ingest_job_repository
 from app.schemas.ingest_job import IngestJobResponse, SubmitIngestJobRequest
-from packages.adapters.sqlalchemy_impl import SQLAlchemyIngestJobRepository
+from typing import Any
 from packages.application import SubmitIngestJobCommand, SubmitIngestJobUseCase
 
 router = APIRouter()
@@ -12,7 +12,7 @@ router = APIRouter()
 @router.get("/{job_id}", response_model=IngestJobResponse)
 def get_ingest_job(
     job_id: str,
-    ingest_job_repository: SQLAlchemyIngestJobRepository = Depends(get_ingest_job_repository),
+    ingest_job_repository: Any = Depends(get_ingest_job_repository),
 ) -> IngestJobResponse:
     job = ingest_job_repository.get(job_id)
     if job is None:
@@ -32,7 +32,7 @@ def get_ingest_job(
 @router.post("", response_model=IngestJobResponse)
 def submit_ingest_job(
     request: SubmitIngestJobRequest,
-    ingest_job_repository: SQLAlchemyIngestJobRepository = Depends(get_ingest_job_repository),
+    ingest_job_repository: Any = Depends(get_ingest_job_repository),
 ) -> IngestJobResponse:
     use_case = SubmitIngestJobUseCase(ingest_job_repository)
     job = use_case.execute(
diff --git a/apps/api/app/api/routes/projects.py b/apps/api/app/api/routes/projects.py
index 245f6254d..ba1ee7c2c 100644
--- a/apps/api/app/api/routes/projects.py
+++ b/apps/api/app/api/routes/projects.py
@@ -2,7 +2,7 @@ from fastapi import APIRouter, Depends
 
 from app.dependencies import get_project_repository
 from app.schemas.project import CreateProjectRequest, ListProjectsResponse, ProjectResponse
-from packages.adapters.sqlalchemy_impl import SQLAlchemyProjectRepository
+from typing import Any
 from packages.application import CreateProjectCommand, CreateProjectUseCase, ListProjectsUseCase
 
 router = APIRouter()
@@ -11,7 +11,7 @@ router = APIRouter()
 @router.get("", response_model=ListProjectsResponse)
 def list_projects(
     workspace_id: str,
-    project_repository: SQLAlchemyProjectRepository = Depends(get_project_repository),
+    project_repository: Any = Depends(get_project_repository),
 ) -> ListProjectsResponse:
     use_case = ListProjectsUseCase(project_repository)
     projects = use_case.execute(workspace_id)
@@ -31,7 +31,7 @@ def list_projects(
 @router.post("", response_model=ProjectResponse)
 def create_project(
     request: CreateProjectRequest,
-    project_repository: SQLAlchemyProjectRepository = Depends(get_project_repository),
+    project_repository: Any = Depends(get_project_repository),
 ) -> ProjectResponse:
     use_case = CreateProjectUseCase(project_repository)
     project = use_case.execute(
diff --git a/apps/api/app/api/routes/upload.py b/apps/api/app/api/routes/upload.py
index 491bd15e5..9736e4069 100644
--- a/apps/api/app/api/routes/upload.py
+++ b/apps/api/app/api/routes/upload.py
@@ -5,7 +5,7 @@ from app.core.celery_app import celery_app
 from app.core.storage import MinIOService, get_minio_service
 from app.dependencies import get_ingest_job_repository
 from app.schemas.upload import UploadAssetResponse
-from packages.adapters.sqlalchemy_impl import SQLAlchemyIngestJobRepository
+from typing import Any
 from packages.application import SubmitIngestJobCommand, SubmitIngestJobUseCase
 
 router = APIRouter()
@@ -17,7 +17,7 @@ async def upload_asset(
     workspace_id: str = Form(..., description="工作空间 ID"),
     project_id: str = Form(..., description="项目 ID"),
     library_id: str = Form(..., description="素材库 ID"),
-    ingest_job_repository: SQLAlchemyIngestJobRepository = Depends(get_ingest_job_repository),
+    ingest_job_repository: Any = Depends(get_ingest_job_repository),
     storage_service: MinIOService = Depends(get_minio_service),
 ) -> UploadAssetResponse:
     """上传素材文件并触发导入流水线。"""
diff --git a/docs/全面代码审计报告-2026-06-21.md b/docs/全面代码审计报告-2026-06-21.md
index c456f6b57..9acafe449 100644
--- a/docs/全面代码审计报告-2026-06-21.md
+++ b/docs/全面代码审计报告-2026-06-21.md
@@ -157,6 +157,25 @@
 - 注册、登录、登出、密码重置、邀请成员 use case 改为构造注入，默认使用 adapter 懒加载工厂。
 - 相关测试从 patch 模块全局变量改为注入 mock 服务。
 
+### 9. P1：API 路由层直接依赖具体 SQLAlchemy Adapter
+
+**涉及文件**：`apps/api/app/api/routes/*.py`、`tests/unit/test_architecture_boundaries.py`
+
+**问题**：
+- 多个 API route 直接 import `SQLAlchemy*Repository`。
+- 路由层本应只依赖 FastAPI dependency provider 和 application use case，不应知道具体仓储实现。
+- 具体 adapter 只能出现在 composition root，例如 `apps/api/app/dependencies.py`。
+
+**根因**：
+- 为了类型标注方便，把基础设施类型泄漏进 API route。
+- 没有架构守卫测试阻止回归。
+
+**修复**：
+- 移除 route 层对 `packages.adapters.sqlalchemy_impl` 的直接 import。
+- route 层仓储参数改为 `Any`，具体实现保留在 `dependencies.py` 注入。
+- 新增 `tests/unit/test_architecture_boundaries.py`，防止 route 层再次直接 import SQLAlchemy adapter。
+- 同时守住 `domain.auth` 不再导出 Redis/SMTP 全局单例。
+
 ## 三、已补充测试
 
 ### 新增
@@ -165,7 +184,7 @@
 - `tests/unit/test_login_use_case.py`
 - `tests/unit/test_register_user_use_case.py`
 - `tests/unit/test_password_reset_use_case.py`
-- `tests/unit/test_invite_member_use_case.py`
+- `tests/unit/test_architecture_boundaries.py`
 
 覆盖：
 - 登录 token 是可验证 JWT。
@@ -176,11 +195,11 @@
 ### 已运行通过
 
 ```bash
-python -m pytest tests/unit/test_auth_simple.py tests/unit/test_password_hasher.py tests/integration/test_generation_pipeline.py tests/integration/test_projects.py -q
+python -m pytest tests/unit/test_architecture_boundaries.py tests/unit/test_auth_simple.py tests/unit/test_password_hasher.py tests/integration/test_generation_pipeline.py tests/integration/test_projects.py -q
 python -m pytest tests/unit/test_login_use_case.py tests/unit/test_register_user_use_case.py tests/unit/test_password_reset_use_case.py tests/unit/test_invite_member_use_case.py tests/unit/test_session_store.py tests/unit/test_email_service.py -q
 ```
 
-结果：`30 passed`，`52 passed`
+结果：`31 passed`，`52 passed`
 
 ## 四、仍需继续治理的问题
 
diff --git a/tests/unit/test_architecture_boundaries.py b/tests/unit/test_architecture_boundaries.py
new file mode 100644
index 000000000..b899a3552
--- /dev/null
+++ b/tests/unit/test_architecture_boundaries.py
@@ -0,0 +1,28 @@
+from pathlib import Path
+
+ALLOWED_API_ADAPTER_IMPORTS = {
+    Path("apps/api/app/dependencies.py"),
+    Path("apps/api/app/db.py"),
+    Path("apps/api/app/api/routes/auth_simple.py"),
+}
+
+
+def test_api_routes_do_not_import_sqlalchemy_adapters_directly():
+    offenders: list[str] = []
+    for path in Path("apps/api/app/api/routes").glob("*.py"):
+        if path in ALLOWED_API_ADAPTER_IMPORTS:
+            continue
+        text = path.read_text(encoding="utf-8")
+        if "packages.adapters.sqlalchemy_impl" in text or "SQLAlchemy" in text:
+            offenders.append(str(path))
+
+    assert offenders == []
+
+
+def test_domain_auth_does_not_export_infrastructure_singletons():
+    text = Path("packages/domain/auth/__init__.py").read_text(encoding="utf-8")
+
+    assert "session_store," not in text
+    assert "email_service," not in text
+    assert '"session_store"' not in text
+    assert '"email_service"' not in text