feat: support MCP elicitation and rebuild release

fixtures/gitea-workflow/valid-issue-comment.json

@@ -0,0 +1,19 @@
+{
+  "name": "valid-issue-comment",
+  "headers": {
+    "x-gitea-event": "issue_comment",
+    "x-gitea-delivery": "delivery-issue-001"
+  },
+  "payload": {
+    "repository": {
+      "owner": "acme",
+      "name": "widget",
+      "clone_url": "https://gitea.example/acme/widget.git",
+      "default_branch": "main"
+    },
+    "issue": {"number": 42, "pull_request": false},
+    "comment": {"id": 101, "body": "@ccweb-bot 请修复登录校验", "user": {"login": "alice"}},
+    "sender": {"login": "alice", "is_bot": false}
+  },
+  "expected": {"accepted": true, "resourceKind": "issue", "instruction": "请修复登录校验"}
+}