Telegram: harden network retries and config

Co-authored-by: techboss <techboss@users.noreply.github.com>

docs/channels/telegram.md

@@ -529,6 +529,7 @@ Provider options:
 - `channels.telegram.streamMode`: `off | partial | block` (draft streaming).
 - `channels.telegram.mediaMaxMb`: inbound/outbound media cap (MB).
 - `channels.telegram.retry`: retry policy for outbound Telegram API calls (attempts, minDelayMs, maxDelayMs, jitter).
+- `channels.telegram.network.autoSelectFamily`: override Node autoSelectFamily (true=enable, false=disable). Defaults to disabled on Node 22 to avoid Happy Eyeballs timeouts.
 - `channels.telegram.proxy`: proxy URL for Bot API calls (SOCKS/HTTP).
 - `channels.telegram.webhookUrl`: enable webhook mode.
 - `channels.telegram.webhookSecret`: webhook secret (optional).

docs/gateway/configuration.md

@@ -1029,6 +1029,9 @@ Set `channels.telegram.configWrites: false` to block Telegram-initiated config w
         maxDelayMs: 30000,
         jitter: 0.1
       },
+      network: {                           // transport overrides
+        autoSelectFamily: false
+      },
       proxy: "socks5://localhost:9050",
       webhookUrl: "https://example.com/telegram-webhook",
       webhookSecret: "secret",