The Obsidian CLI does not support binary file output, causing corrupted
or empty results for images, PDFs, ZIPs, etc.
New approach for binary files (known MIME type from extension):
- Run 'obsidian vault info=path' to get the vault root filesystem path
- If 'file' param: run 'obsidian file file=<name>' and parse the 'path'
field from its output to get the vault-relative path
- If 'path' param: use it directly as the vault-relative path
- Read the file with Node fs.readFile() and return as MCP content
Images -> { type: 'image', data, mimeType }
Other binary -> { type: 'resource', resource: { uri, mimeType, blob } }
Unknown extensions fall through to the CLI with a runtime binary
detection fallback that also uses native FS if triggered.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
