v2.6.4b3 - CC2 Client ID Format Fix

Critical Bug Fix for CC2 Printers

This beta release fixes a critical authentication issue preventing CC2 (Centauri Carbon 2) printers from connecting to Home Assistant.

🐛 Bug Fixes

CC2 Client ID Format Fix (#329)

• Fixed client_id format to match official Elegoo web interface
• Changed from 1_PC_5234 to 0clib9137a format (exactly 10 chars)
• Changed request_id from 1_PC_5234_req to UUID + timestamp format
• This was causing registration timeouts and connection failures

✅ Confirmed Working

Tested and confirmed working by @JoBanJo with CC2 printer in LAN-only mode.

📝 Previous Changes (from v2.6.4b1 and b2)

• Manual IP flow improvements for CC2 authentication
• Discovery reliability improvements (10s timeout, retry logic)
• Comprehensive debug logging for troubleshooting
• CC2 LAN-only mode documentation

⚠️ Important Notes

CC2 Printers:

• LAN-Only Mode Required: Settings → Network → LAN Only Mode → Enable
• Cloud mode is not currently supported (requires OAuth2/RTM architecture)

Network Requirements:

• Printer and Home Assistant must be on the same network/subnet
• For containerized HA (Docker/K8s): Use host networking or proper network bridging

🔗 Links

• Issue: #329
• Documentation: CC2_PROTOCOL.md
• LAN-only discussion: #323

📦 Installation

Update via HACS or manually to test this beta release.