- Add 'absolute' volume scope for direct host paths (NFS, external mounts)
- Allowlist in settings: allowed_volume_paths (JSON array of prefixes)
- Validation: absolute source must be under an allowed prefix
- Empty allowlist = absolute scope disabled entirely
- Settings API exposes/validates allowed_volume_paths
- Frontend type updated with absolute scope
Critical fixes:
- IDOR: verify volume belongs to project before resolving path
- Upload: override global 1MB body limit for upload endpoint (100MB)
High-priority fixes:
- Symlink escape: use filepath.EvalSymlinks in safePath validation
- Remove host filesystem path from browse API response
- Sanitize Content-Disposition filenames, force application/octet-stream
- Strip directory components from upload filenames