Update project files

src/bridge.ts

@@ -111,15 +111,30 @@ export class BridgeServer {
         });
     }
 
+    /**
+     * Cached `/ping` payload. `/ping` is a liveness probe that external tools may
+     * hit frequently; the previous implementation did a full brain-corpus walk
+     * plus a config serialize on *every* hit. We now compute that body at most
+     * once per `PING_CACHE_TTL_MS` and reuse it — the response shape (status /
+     * config / brain) is unchanged, ping just stops walking the brain per hit.
+     */
+    private _pingCache: { body: string; expiresAt: number } | null = null;
+    private static readonly PING_CACHE_TTL_MS = 5000;
+
     private handlePing(res: http.ServerResponse) {
-        const brainDir = _getBrainDir();
-        const brainCount = fs.existsSync(brainDir) ? findBrainFiles(brainDir).length : 0;
+        const now = Date.now();
+        if (!this._pingCache || this._pingCache.expiresAt <= now) {
+            const brainDir = _getBrainDir();
+            const brainCount = fs.existsSync(brainDir) ? findBrainFiles(brainDir).length : 0;
+            const body = JSON.stringify({
+                status: 'ok',
+                config: getConfig(),
+                brain: { fileCount: brainCount, enabled: this.provider.brainEnabled }
+            });
+            this._pingCache = { body, expiresAt: now + BridgeServer.PING_CACHE_TTL_MS };
+        }
         res.writeHead(200, { 'Content-Type': 'application/json' });
-        res.end(JSON.stringify({
-            status: 'ok',
-            config: getConfig(),
-            brain: { fileCount: brainCount, enabled: this.provider.brainEnabled }
-        }));
+        res.end(this._pingCache.body);
     }
 
     private handlePost(req: http.IncomingMessage, res: http.ServerResponse, processor: (data: any, res: http.ServerResponse) => Promise<void>) {