config: add polling section to sample config

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I882b8ce0657f0f92dc31f7fc9713e9256a6a6964

config.example.ts

@@ -15,9 +15,11 @@ const config: Config = {
       include: [],
       exclude: ['bot-ignore'],
     },
+
     authors: {
       exclude: ['dependabot', 'renovate[bot]'],
     },
+
     branches: {
       include: [], // empty = all branches
     },
@@ -62,7 +64,9 @@ const config: Config = {
     includeReasoning: true,
 
     // One message is picked at random from the list matching the impact.
-    // Placeholders: {type} (issue/pull request), {impact} (positive/negative/neutral)
+    // Placeholders:
+    // - {type} (issue/pull request),
+    // - {impact} (positive/negative/neutral)
     messages: {
       positive: [
         'This {type} looks great for the trout! All signals point upstream.',
@@ -89,6 +93,14 @@ const config: Config = {
     level: 'info',
     file: 'troutbot.log',
   },
+
+  // Polling mode: Watch for @troutbot mentions without webhooks.
+  // Useful for monitoring multiple repos without needing webhook configuration.
+  polling: {
+    enabled: false,
+    intervalMinutes: 5, // how often to check for new comments
+    lookbackMinutes: 10, // how far back to look for comments on each poll
+  },
 };
 
 export default config;