* ✨ Add built-in telegram-bridge command
- add a headless Telegram bridge entrypoint and reusable path resolver
- export the new bridge helpers and cover path defaults with focused tests
- document headless Telegram usage in the README and verify startup without the wrapper
* 🐛 Fix telegram bridge shutdown handling
- restore the CLI's default SIGTERM exit behavior for non-bridge commands
- let the headless telegram bridge own SIGTERM cleanup while it is running
- abort bridge startup and clear watchers/listeners when Telegram setup fails early
* ♻️ Share Telegram approval persistence
- move approved-user persistence into a shared Telegram settings helper
- reuse the helper from both the TUI pairing flow and the headless bridge
- keep the approval write path consistent while removing duplicated settings merge logic
* bump package.json version
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Co-authored-by: Ismail Pelaseyed <homanp@gmail.com>
