feat(wal): implement segment rotation, recovery scanner, and record parser

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- wal/segment_manager.go: segment lifecycle with rotation at batch boundaries
- wal/scanner.go: segment discovery, ordering, and continuity validation
- wal/record_parser.go: block-level physical record parsing with tail corruption detection
- Comprehensive tests for all modules, all pass with -race

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dailz

2026-06-12 13:50:03 +08:00

parent 349063968b

commit 08960a9bcf

9 changed files with 1074 additions and 4 deletions

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