feat: complete dev_tools module self-containment

Migrate dev_tools module to self-contained structure:

- routes/api/ - API endpoints
- models/architecture_scan.py - Architecture scan models
- models/test_run.py - Test run models
- schemas/ - Pydantic schemas
- services/ - Business logic services
- tasks/ - Celery background tasks
- exceptions.py - Module exceptions

Updated definition.py with self-contained paths.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/modules/dev_tools/definition.py

@@ -3,35 +3,93 @@
 Dev-Tools module definition.
 
 Defines the dev-tools module including its features, menu items,
-and route configurations.
+route configurations, and task definitions.
 
-Note: This module primarily provides page routes, not API routes.
+Dev-Tools is an internal module providing:
+- Code quality scanning (architecture, security, performance validators)
+- Test execution and results management
+- Component library browser
+- Icon browser
 """
 
 from app.modules.base import ModuleDefinition
 from models.database.admin_menu_config import FrontendType
 
 
+def _get_admin_router():
+    """Lazy import of admin router to avoid circular imports."""
+    from app.modules.dev_tools.routes.api.admin import admin_router
+
+    return admin_router
+
+
 # Dev-Tools module definition
 dev_tools_module = ModuleDefinition(
     code="dev-tools",
     name="Developer Tools",
-    description="Component library and icon browser for development.",
+    description=(
+        "Internal development tools including code quality scanning, "
+        "test execution, component library, and icon browser."
+    ),
     version="1.0.0",
     features=[
         "component_library",  # UI component browser
         "icon_browser",  # Icon library browser
+        "code_quality",  # Code quality scanning
+        "architecture_validation",  # Architecture validator
+        "security_validation",  # Security validator
+        "performance_validation",  # Performance validator
+        "test_runner",  # Test execution
+        "violation_management",  # Violation tracking and assignment
     ],
     menu_items={
         FrontendType.ADMIN: [
             "components",  # Component library page
             "icons",  # Icon browser page
+            "code-quality",  # Code quality dashboard
+            "tests",  # Test runner dashboard
         ],
-        FrontendType.VENDOR: [],  # No vendor menu items
+        FrontendType.VENDOR: [],  # No vendor menu items - internal module
     },
     is_core=False,
     is_internal=True,  # Internal module - admin-only, not customer-facing
+    # =========================================================================
+    # Self-Contained Module Configuration
+    # =========================================================================
+    is_self_contained=True,
+    services_path="app.modules.dev_tools.services",
+    models_path="app.modules.dev_tools.models",
+    schemas_path="app.modules.dev_tools.schemas",
+    exceptions_path="app.modules.dev_tools.exceptions",
+    tasks_path="app.modules.dev_tools.tasks",
+    # =========================================================================
+    # Scheduled Tasks
+    # =========================================================================
+    # Note: Code quality and test tasks are on-demand, not scheduled.
+    # If scheduled scans are desired, they can be added here:
+    # scheduled_tasks=[
+    #     ScheduledTask(
+    #         name="dev_tools.nightly_code_scan",
+    #         task="app.modules.dev_tools.tasks.code_quality.execute_code_quality_scan",
+    #         schedule="0 2 * * *",  # Daily at 02:00
+    #         options={"queue": "long_running"},
+    #     ),
+    # ],
+    scheduled_tasks=[],
 )
 
 
-__all__ = ["dev_tools_module"]
+def get_dev_tools_module_with_routers() -> ModuleDefinition:
+    """
+    Get dev-tools module with routers attached.
+
+    This function attaches the routers lazily to avoid circular imports
+    during module initialization.
+    """
+    dev_tools_module.admin_router = _get_admin_router()
+    # No vendor router for internal modules
+    dev_tools_module.vendor_router = None
+    return dev_tools_module
+
+
+__all__ = ["dev_tools_module", "get_dev_tools_module_with_routers"]