Adds a "File Path" text rule so a smart album can match on where a photo
lives, e.g. contains "/Aliah Ira Polanco-Grylls/". "contains" /
"doesn't contain" match the whole string (spaces included) rather than
word by word; the other text operators are the shared ones. `\` and `/`
both separate and matching ignores case, so catalogs moved between
platforms still match. Demo photos have no path.
The rule editor, CLI and MCP pick the field up from FIELDS. parity.md's
smart-collection rows now list it (and the stale field count is fixed).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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