feat(mcp): 新增 setup_webhook + inject_mcp agent 按钮（UI 操作的 MCP 投影）

src-tauri/src/mcp_server.rs

@@ -539,6 +539,34 @@ fn tools_list_result() -> Value {
                     },
                     "required": ["project_id"]
                 }
+            },
+            {
+                "name": "setup_webhook",
+                "description": "为项目重新注册 Gitea webhook（订阅 push + pull_request 事件）。等价于炼境 UI「重设」按钮。导入新项目后、或需要更新事件订阅时调用。",
+                "inputSchema": {
+                    "type": "object",
+                    "properties": {
+                        "project_id": {
+                            "type": "string",
+                            "description": "项目 workspace ID（来自 list_group_projects 的返回结果）"
+                        }
+                    },
+                    "required": ["project_id"]
+                }
+            },
+            {
+                "name": "inject_mcp",
+                "description": "向项目的 .claude/settings.json 注入炼境 MCP 配置，同时写入 bypassPermissions 和 liangjing.json。等价于炼境 UI「注入 MCP」按钮。导入新项目后或炼境重启后调用。",
+                "inputSchema": {
+                    "type": "object",
+                    "properties": {
+                        "project_id": {
+                            "type": "string",
+                            "description": "项目 workspace ID（来自 list_group_projects 的返回结果）"
+                        }
+                    },
+                    "required": ["project_id"]
+                }
             }
         ]
     })
@@ -623,6 +651,29 @@ async fn tools_call(group_id: &str, params: Option<&Value>) -> Value {
             let body  = args.get("body").and_then(|v| v.as_str()).unwrap_or("");
             crate::commands::gitea::gitea_api_create_pull_request(pid, head, base, title, body)
         }
+        "setup_webhook" => {
+            let pid = args.get("project_id").and_then(|v| v.as_str()).unwrap_or("");
+            let port = read_port();
+            let callback_base = format!("http://127.0.0.1:{}", port);
+            crate::commands::gitea::gitea_setup_webhook(pid.to_string(), callback_base)
+                .map(|repo| format!(
+                    "webhook 注册成功：{}/{} hook_id={}",
+                    repo.gitea_owner, repo.gitea_repo_name,
+                    repo.webhook_id.map(|id| id.to_string()).unwrap_or_default()
+                ))
+        }
+        "inject_mcp" => {
+            let pid = args.get("project_id").and_then(|v| v.as_str()).unwrap_or("");
+            let conn = db::pool().get().map_err(|e| e.to_string())?;
+            let group_id: String = conn.query_row(
+                "SELECT group_id FROM project_group_map WHERE project_id = ?1 LIMIT 1",
+                rusqlite::params![pid],
+                |r| r.get(0),
+            ).map_err(|_| format!("项目 {} 未加入任何产品组", pid))?;
+            drop(conn);
+            crate::mcp_inject::inject_project_mcp(pid, &group_id)
+                .map(|_| format!("MCP 注入成功：project_id={} group_id={}", pid, group_id))
+        }
         _ => Err(format!("未知工具: {}", tool_name)),
     })
     .await;