feat(trigger): add trigger provider management and webhook handling functionality

api/controllers/trigger/__init__.py

@@ -4,4 +4,4 @@ from flask import Blueprint
 bp = Blueprint("trigger", __name__, url_prefix="/triggers")
 
 # Import routes after blueprint creation to avoid circular imports
-from . import webhook
+from . import trigger, webhook

api/controllers/trigger/trigger.py

@@ -0,0 +1,23 @@
+import logging
+
+from flask import jsonify, request
+from werkzeug.exceptions import NotFound
+
+from controllers.trigger import bp
+from services.trigger_service import TriggerService
+
+logger = logging.getLogger(__name__)
+
+
+@bp.route("/trigger/webhook/<string:endpoint_id>", methods=["GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"])
+def trigger_webhook(endpoint_id: str):
+    """
+    Handle webhook trigger calls.
+    """
+    try:
+        return TriggerService.process_webhook(endpoint_id, request)
+    except ValueError as e:
+        raise NotFound(str(e))
+    except Exception as e:
+        logger.exception("Webhook processing failed for {endpoint_id}")
+        return jsonify({"error": "Internal server error", "message": str(e)}), 500