feat: auto-open browser when MCP server starts vis dashboard

- When KIMI_MEMORY_AUTO_VIS=1, MCP server starts dashboard and opens browser
- open_memory_dashboard tool already opens browser
- Ignore open failures in headless environments

Author: Zehee

src/server.ts

@@ -114,6 +114,12 @@ async function main() {
   const visResult = await maybeStartVisServer(ctx);
   if (visResult.started && visResult.url) {
     process.stderr.write(`[kimi-memory] vis dashboard ready at ${visResult.url}\n`);
+    try {
+      const { default: openBrowser } = await import('open');
+      await openBrowser(visResult.url);
+    } catch {
+      // Browser may not be available in headless/server environments; ignore.
+    }
   } else if (visResult.error) {
     process.stderr.write(`[kimi-memory] vis dashboard failed to start: ${visResult.error}\n`);
   }