feat: Add Open WebUI auto-update

Simple local Docker update via existing update.sh script. Context
file tells the classifier this is a single Docker instance, so
database migration warnings aimed at multi-worker deployments are
correctly classified as auto.

services/open-webui/review-examples/auto-3.txt

@@ -0,0 +1,20 @@
+action: auto
+reason: Database schema changes and long-running migration run automatically on startup for single-instance Docker deployments. The warnings about simultaneous updates only apply to multi-worker or load-balanced setups, which this is not.
+---
+> [!CAUTION]
+> Database Migrations: This release includes database schema changes; we strongly recommend backing up your database and all associated data before upgrading in production environments. If you are running a multi-worker, multi-server, or load-balanced deployment, all instances must be updated simultaneously, rolling updates are not supported and will cause application failures due to schema incompatibility.
+
+> [!WARNING]
+> Long-Running Database Migration: This release includes a migration for the `chat_message` table that can take a significant amount of time to complete, especially in larger deployments with extensive chat histories. Please plan for adequate downtime and allow the migration to finish completely without interruption.
+
+### New features
+
+- Experimental support for Open Responses protocol
+- Yandex search provider
+- Custom password hints via PASSWORD_VALIDATION_HINT environment variable
+- MCP custom SSL certificates support
+
+### Important notes
+
+- Database Migration Required — This release includes database schema changes; multi-worker, multi-server, or load-balanced deployments must update all instances simultaneously.
+- Chat Message Table Migration — This release includes a new chat message table migration that can take a significant amount of time to complete in larger deployments with extensive chat histories.