i18n(pt): AI translation update — sync with messages.pot (2026-06-11)

[mekarpeles]

Summary

Syncs the Portuguese (pt) translation file with the current messages.pot template and fills in
previously untranslated strings.

AI attribution: All new translations in this PR were generated by claude-sonnet-4-6. They should
be reviewed by a native speaker before merging, particularly for tone and idiomatic accuracy.
Format strings (%(name)s, %(count)d, etc.) and HTML markup were preserved verbatim.

Changes

• Ran scripts/i18n-messages update pt to sync with current messages.pot
• Filling ~502 previously untranslated msgid entries (in progress — batching)
• Left fuzzy entries unchanged (marked for human review)
• Cleared stale fuzzy msgstrs with HTML structure mismatches (8 entries)
• Fixed 56 fuzzy entries with format-string type mismatches

Validation

• i18n-messages validate pt — 0 errors ✓
• i18n-messages compile pt — compiled successfully ✓
• pre-commit run --files openlibrary/i18n/pt/messages.po — clean ✓

Reviewer guidance

Please spot-check translations for:

1. Accuracy of meaning (does the translation convey the intent?)
2. Natural phrasing (does it sound like UI text, not literal translation?)
3. Correct plural forms for the target language
4. Preserved format strings and HTML

Native speakers: please edit the .po file directly on this branch.

🤖 Generated by claude-sonnet-4-6

[Copilot]

Copilot wasn't able to review any files in this pull request.