fix: correct static file mount order and update architecture validator

- Fix FastAPI static mount order: module statics must come BEFORE main
  /static mount, otherwise the more general mount catches all requests
- Update validate_architecture.py to check self-contained module paths:
  - JS files in app/modules/*/static/{admin,vendor}/js/
  - Templates in app/modules/*/templates/*/{admin,vendor}/
  - TPL-010 now finds module JS files for Alpine variable checking

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

main.py

@@ -178,13 +178,10 @@ logger.info("=" * 80)
 # ========================================
 # MOUNT STATIC FILES - Use absolute path
 # ========================================
-if STATIC_DIR.exists():
-    app.mount("/static", StaticFiles(directory=str(STATIC_DIR)), name="static")
-    logger.info(f"Mounted static files from: {STATIC_DIR}")
-else:
-    logger.warning(f"Static directory not found at {STATIC_DIR}")
+# NOTE: Mount order matters in FastAPI - more specific paths must come FIRST
+# Module static files must be mounted before the main /static mount
 
-# Mount module static files (self-contained modules)
+# Mount module static files FIRST (self-contained modules)
 MODULES_DIR = BASE_DIR / "app" / "modules"
 if MODULES_DIR.exists():
     for module_dir in sorted(MODULES_DIR.iterdir()):
@@ -197,6 +194,13 @@ if MODULES_DIR.exists():
             app.mount(mount_path, StaticFiles(directory=str(module_static)), name=f"{module_name}_static")
             logger.info(f"Mounted module static files: {mount_path} -> {module_static}")
 
+# Mount main static directory AFTER module statics
+if STATIC_DIR.exists():
+    app.mount("/static", StaticFiles(directory=str(STATIC_DIR)), name="static")
+    logger.info(f"Mounted static files from: {STATIC_DIR}")
+else:
+    logger.warning(f"Static directory not found at {STATIC_DIR}")
+
 # Mount uploads directory for user-uploaded media files
 UPLOADS_DIR = BASE_DIR / "uploads"
 if UPLOADS_DIR.exists():