1. Minor allocation: reject minor=0 from API instead of silently using it.
API returning null/0 means the service point isn't configured right.
2. DXSmart write reliability:
- Add per-command retry (1 retry with 500ms backoff)
- Increase inter-command delay from 200ms to 500ms
- Increase post-auth settle from 100ms to 500ms
- Add 2s cooldown in FallbackProvisioner between provisioner attempts
The beacon's BLE stack gets hammered by KBeacon's 15 failed auth
attempts before DXSmart even gets a chance. These timings give it
breathing room.
3. KBeacon passwords: password 5 was a duplicate of password 3
(both "1234567890123456"). Replaced with "000000" (6-char variant).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
