- Corrected LZHP prediction encoding in disk backups to prevent data corruption
- Disabled spurious SOLID flag for per-block disk archives
- Shared write_enc_header() across all encryption paths to eliminate format mismatches
- Enabled solid compression with PQ encryption support
- Updated block device restore to use O_SYNC + fsync/sync
- Improved Termux/Android host detection for safer builds
- Made zupt_w8(), zupt_w16le(), zupt_w64le() non-static for shared use
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