xuiltul 57daf2ab30 fix: use absolute path for attachment storage and improve filename resolution ...

Fixes #327

- Use absolute path (~/.workspace-mcp/attachments/) instead of relative
  ./tmp/attachments to avoid polluting working directories
- Make storage directory configurable via WORKSPACE_ATTACHMENT_DIR env var
- Return file path from save_attachment() instead of UUID for direct
  filesystem access (useful in stdio mode where HTTP URLs are unavailable)
- Preserve original filenames with UUID suffix for uniqueness
- Use format="full" instead of format="metadata" when fetching attachment
  info, as metadata format doesn't include attachmentId in parts
- Add multi-level filename matching: exact attachmentId → size-based
  fallback → single-attachment fallback (handles ephemeral IDs)

2026-02-02 16:43:34 +09:00

71 KiB

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