chore: increase GmailWatcher default poll interval from 60s to 300s

src/automation/gmail.test.ts

@@ -109,7 +109,7 @@ function createMockConfig(overrides = {}) {
     credentials_file: '~/.config/flynn/gmail-credentials.json',
     token_file: '~/.config/flynn/gmail-token.json',
     watch_labels: ['INBOX'],
-    poll_interval: '60s',
+    poll_interval: '300s',
     output: {
       channel: 'telegram',
       peer: '12345',

src/automation/gmail.ts

@@ -90,7 +90,7 @@ export class GmailWatcher implements ChannelAdapter {
     }
 
     // Start polling fallback
-    const pollMs = parseInterval(this.config.poll_interval ?? '60s');
+    const pollMs = parseInterval(this.config.poll_interval ?? '300s');
     this.pollTimer = setInterval(() => {
       this.pollForNewMessages().catch((err) => {
         console.error('GmailWatcher: Poll error —', err instanceof Error ? err.message : err);
@@ -98,7 +98,7 @@ export class GmailWatcher implements ChannelAdapter {
     }, pollMs);
 
     this._status = 'connected';
-    console.log(`GmailWatcher: Connected (poll_interval=${this.config.poll_interval ?? '60s'})`);
+    console.log(`GmailWatcher: Connected (poll_interval=${this.config.poll_interval ?? '300s'})`);
   }
 
   async disconnect(): Promise<void> {