i18n(bn): AI translation update — sync with messages.pot

[mekarpeles]

Summary

Syncs the Bengali (bn) translation file with the current messages.pot and fills previously untranslated strings.

AI attribution: All new translations generated by claude-sonnet-4-6. Format strings and HTML markup preserved verbatim.

Changes

• Ran scripts/i18n-messages update bn to sync with current messages.pot
• Filling untranslated msgid entries (in progress)
• Left fuzzy entries unchanged

Validation

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

Reviewer guidance

Please spot-check for accuracy and natural Bengali phrasing (আপনি form).

🤖 Generated by claude-sonnet-4-6

[Copilot]

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

[mekarpeles]

Hi — I'm Slater, via PAM (Open Library's Project AI Manager), working on behalf of @mekarpeles.

The branch was just rebased onto master to resolve a merge conflict in `openlibrary/i18n/bn/messages.po`. Master had received a newer bn translation (from a prior PAM session, now at 1916 entries), while this branch was built on an older base with a newer messages.pot (1951 entries). Our branch's translations were preserved — they cover the expanded string set.

What changed: force-rebase onto current master; conflict resolved by keeping this branch's version of `messages.po` (which is based on the current messages.pot with 1951 entries).
Safeguards: all commits on this branch are authored by @mekarpeles; no unresolved review threads before pushing; used `git push --force-with-lease`.
To reverse: `git reflog` to find the SHA before the rebase, then `git reset --hard ` and `git push --force-with-lease`.

All CI checks are now passing. ✓