Harwinder 0e95a34d82 Align with Twelve Data API docs and add Telegram command menu
data_provider:
- Switch to Authorization header (recommended over apikey query param)
- Enforce 800 credits/day daily limit with warning at 80%
- Fall back to synthetic data when daily limit is reached
- Fix null OHLC field handling (API can return null for any field)

telegram_bot:
- Register commands with set_my_commands so Telegram shows / menu
- Add /credits command to show daily API credit usage and limits

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-04 15:33:32 -04:00
2026-05-04 10:51:03 -04:00
2026-05-04 10:51:03 -04:00
2026-05-04 14:29:32 +00:00
2026-05-04 14:29:32 +00:00
2026-05-04 14:29:32 +00:00
2026-05-04 14:29:32 +00:00
2026-05-04 10:51:03 -04:00
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