Initial agent-news: Dart Telegram bot + Claude Code runner + MCP bridge

/news spawns claude-code as a local subprocess (single pod, no cross-container
exec on K3s); Claude delivers the digest itself via the send_to_telegram MCP tool.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

bot/pubspec.yaml

@@ -0,0 +1,10 @@
+name: agent_news_bot
+description: Telegram-бот — по /news запускает Claude Code для ресёрча по ИИ
+version: 0.1.0
+publish_to: none
+
+environment:
+  sdk: ^3.11.0
+
+dependencies:
+  http: ^1.2.0