revert: app/ → site/ (drhider proves site/ works fine)

site/routes/__init__.py

@@ -0,0 +1,17 @@
+"""Регистрация всех blueprint'ов."""
+
+
+def register_routes(app):
+    from site.routes.upload_bp import upload_bp
+    from site.routes.pipeline_bp import pipeline_bp
+    from site.routes.api_bp import api_bp
+    from site.routes.prompts_bp import prompts_bp
+    from site.routes.health_bp import health_bp
+    from site.routes.pages_bp import pages_bp
+
+    app.register_blueprint(upload_bp)
+    app.register_blueprint(pipeline_bp)
+    app.register_blueprint(api_bp)
+    app.register_blueprint(prompts_bp)
+    app.register_blueprint(health_bp)
+    app.register_blueprint(pages_bp)