Add comprehensive tests for Python Agent Mail adapter
- Add 24 new tests across 6 test classes
- Cover authorization headers, request body validation
- Test reservation edge cases (TTL, special chars, multiple reservations)
- Test timeout configuration and precedence
- Test inbox/notification edge cases (large payloads, Unicode, nested data)
- Fix timeout parameter precedence bug (constructor now overrides env var)
- All 51 tests pass
Closes bd-b134
Amp-Thread-ID: https://ampcode.com/threads/T-2f39e97d-38de-4df4-bf94-ef90184cee8a
Co-authored-by: Amp <amp@ampcode.com>
24bfb6afd2