feat: add FUSE mount with caching and daemon mode #31
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Implement comprehensive FUSE filesystem layer for mounting buckets:
**Phase 1: LRU Read Caching**
- Cache file content with moka (100MB default, 60s TTL)
- Version-based invalidation on writes/deletes
- Configurable via --cache-size-mb and --cache-ttl-secs flags
**Phase 2: Improved Write Handling**
- Support append mode (O_APPEND) and seeking
- Read-modify-write pattern: load existing content before appending
- Only upload on flush if buffer was modified (dirty tracking)
- Support O_RDWR by reading from write buffer during active writes
**Phase 3: Persistent/Daemonized Mounts**
- --daemon/-d flag to run mount in background
- --unmount/-u flag to cleanly unmount existing mounts
- PID and log files at ~/.jax/fuse-{mount}.{pid,log}
- Cross-platform unmount support (fusermount on Linux, umount on macOS)
Cache invalidation on all write operations (unlink, rename, truncate).
Feature gated behind 'fuse' - requires macFUSE (macOS) or libfuse (Linux).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
- Fix getattr signature (4 params, not 5 - no fh parameter in 0.14) - Remove unnecessary parentheses around assignments - Prefix unused variables with underscore - Allow dead_code for original_loaded field (reserved for future use) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Adds comprehensive FUSE filesystem mounting for jax-bucket with three main improvements:
Usage
Feature gated behind
--features fuse(requires macFUSE or libfuse).Test Plan
🤖 Generated with Claude Code