Improve Agency Tinder source and comments

[MagMueller]

Summary

• Add inline comment input inside the Tinder card action row so comments no longer open the modal sheet.
• Improve source/icon detection to avoid showing GitHub for non-GitHub cards when the source URL is just the generic bux repo, and add platform mappings for LinkedIn, HN, YC, Linear, Datadog, etc.
• Refresh the Mini App feed periodically so Telegram button decisions sync back into the Tinder UI.
• Document source metadata rules and default Agency heartbeat behavior; schedule a first 30-minute Agency heartbeat for newly activated chats.

Tests

• /opt/bux/venv/bin/python -m unittest agent/test_mini_app.py agent/test_telegram_bot.py
• /opt/bux/venv/bin/python -m py_compile agent/mini_app.py agent/telegram_bot.py agent/test_mini_app.py agent/test_telegram_bot.py && node --check agent/mini_app_static/tinder.js && git diff --check
• Playwright mobile dev pass against http://127.0.0.1:8791/?dev=1: verified LinkedIn card does not render generic GitHub source/icon, variants/details are visible, inline comment submits with Enter, and the next Reddit card renders with its source link.

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Summary by cubic

Improves the Agency Tinder UI with inline comments, accurate source icons, and live sync with Telegram decisions. Also documents source rules and auto-schedules a default 30-minute Agency heartbeat for new chats.

• New Features

  • Inline comment field in the card action row; submit with Enter; hides choices while open.
  • Mini App feed auto-refreshes every 15s so Telegram button taps reflect in the deck.
  • Telegram bot schedules a first Agency heartbeat (+30 min) for newly allowed/bound chats, tracked to run once and self-reschedule.

• Bug Fixes

  • Correct source/icon detection: ignore generic github.com/browser-use/bux for non-GitHub cards; expand mappings for LinkedIn, Hacker News/YC, Linear, Datadog, Product Hunt, Gmail, Slack, Reddit, X, and Google Docs.
  • Update prompts and docs to require real source_label/source_url, preventing wrong icons and misleading links.

^{Written for commit cbfb446. Summary will update on new commits.}