этап 2: переиспользуемый модуль upload (sink) вместо рукописного транспорта

- копирую модуль upload/ из drhider (слои 1-2)
- blueprint: параметр sink (drhider-сессия по умолчанию, сверка — DB+парсинг)
- upload_bp: contracts_upload_sink = _store_and_parse
- routes: регистрирую create_upload_refs_blueprint(cfg, sink=...)
- app.py: корень репо в sys.path (для import upload)
- History: план переиспользования + ревью Соннета

site/routes/__init__.py

@@ -2,12 +2,14 @@
 
 
 def register_routes(app):
-    from routes.upload_bp import upload_bp
+    import config
+    from routes.upload_bp import upload_bp, contracts_upload_sink
     from routes.pipeline_bp import pipeline_bp
     from routes.api_bp import api_bp
     from routes.prompts_bp import prompts_bp
     from routes.health_bp import health_bp
     from routes.pages_bp import pages_bp
+    from upload.backend.upload_refs import create_upload_refs_blueprint
 
     app.register_blueprint(upload_bp)
     app.register_blueprint(pipeline_bp)
@@ -15,3 +17,12 @@ def register_routes(app):
     app.register_blueprint(prompts_bp)
     app.register_blueprint(health_bp)
     app.register_blueprint(pages_bp)
+
+    # Переиспользуемый слой закачки через ВМ (модуль upload, паттерн drhider)
+    app.register_blueprint(create_upload_refs_blueprint({
+        "apiPrefix": "/api",
+        "vmUploadPrefix": config.VM_UPLOAD_PREFIX,
+        "maxFileBytes": config.VM_UPLOAD_MAX_BYTES,
+        "pullRetries": config.PULL_RETRIES,
+        "pullRetryDelay": config.PULL_RETRY_DELAY,
+    }, sink=contracts_upload_sink))