fix: retarget the i18n pairing exclusions to the flattened catalog paths
The manifest excluded docs/tool-catalog/ and docs/persistence-catalog/ as
directories; the trailing slash is a deliberate path boundary, so the
flattened single files no longer matched and lost their generated-doc
classification — the gate would have accepted a hand-added .zh.md twin it
must reject. The entries now name the files.
Tianyi Cui