feat(mcp): auto-sync enabled MCP servers to app config on upsert

When upserting an MCP server that is enabled, automatically sync it to the corresponding app's live configuration (Claude or Codex) without requiring manual action.

src-tauri/src/commands.rs

@@ -850,6 +850,24 @@ pub async fn upsert_mcp_server_in_config(
     let changed = crate::mcp::upsert_in_config_for(&mut cfg, &app_ty, &id, spec)?;
     drop(cfg);
     state.save()?;
+
+    let cfg2 = state
+        .config
+        .lock()
+        .map_err(|e| format!("获取锁失败: {}", e))?;
+    let should_sync = cfg2
+        .mcp_for(&app_ty)
+        .servers
+        .get(&id)
+        .and_then(|entry| entry.get("enabled"))
+        .and_then(|v| v.as_bool())
+        .unwrap_or(false);
+    if should_sync {
+        match app_ty {
+            crate::app_config::AppType::Claude => crate::mcp::sync_enabled_to_claude(&cfg2)?,
+            crate::app_config::AppType::Codex => crate::mcp::sync_enabled_to_codex(&cfg2)?,
+        }
+    }
     Ok(changed)
 }