feat(telegram): harden channel reliability with retries and error diagnostics

src/config/schema.test.ts

@@ -1,6 +1,18 @@
 import { describe, it, expect } from 'vitest';
 import { configSchema } from './schema.js';
 
+describe('configSchema — telegram', () => {
+  const minimalConfig = {
+    telegram: { bot_token: 'test', allowed_chat_ids: [1] },
+    models: { default: { provider: 'anthropic', model: 'claude-3' } },
+  };
+
+  it('defaults telegram require_mention to false', () => {
+    const result = configSchema.parse(minimalConfig);
+    expect(result.telegram?.require_mention).toBe(false);
+  });
+});
+
 describe('configSchema — sandbox', () => {
   const minimalConfig = {
     telegram: { bot_token: 'test', allowed_chat_ids: [1] },