MarekWo 719e11e868 feat(path_hash_mode): add decode_path_len and fix RX_LOG_DATA parsing ...

Stage 1 of path_hash_mode support. The critical bug in _on_rx_log_data
treated the raw path_len byte as a direct byte count, which breaks with
mode>0 (e.g. mode=1, 0 hops → path_len=0x40=64, reading 64 bytes of
non-existent path data). Now properly decodes the encoded path_len byte
into hop_count, hash_size, and path_byte_len.

Changes:
- Add decode_path_len() utility for MeshCore v1.14+ path_len encoding
- Fix _on_rx_log_data binary parsing to use decoded path length
- Pass hash_size through _process_echo → DB insert → SocketIO emission
- Add hash_size column to echoes table (schema + migration)
- Update insert_echo() to store hash_size (default 1 for backward compat)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-30 09:47:20 +02:00

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