feat: support MCP elicitation and rebuild release

fixtures/gitea-workflow/bot-self-comment.json

@@ -0,0 +1,11 @@
+{
+  "name": "bot-self-comment",
+  "headers": {"x-gitea-event": "issue_comment", "x-gitea-delivery": "delivery-bot-001"},
+  "payload": {
+    "repository": {"owner": "acme", "name": "widget"},
+    "issue": {"number": 42, "pull_request": false},
+    "comment": {"id": 303, "body": "@ccweb-bot 状态更新", "user": {"login": "ccweb-bot", "type": "Bot"}},
+    "sender": {"login": "ccweb-bot", "is_bot": true}
+  },
+  "expected": {"accepted": false, "reason": "bot_self_comment"}
+}