Pinakes v0.7.31

What's Changed

• fix(mail): SMTP connect timeout + circuit-breaker so a down mail server can't stall the cron by @fabiodalez-dev in #236
• test(gate): activate every activatable plugin, not just book-club by @fabiodalez-dev in #239
• feat(search): denormalized FULLTEXT search + subtitle in results (0.7.31) by @fabiodalez-dev in #240
• fix(search): harden FULLTEXT term handling + close import/API index gaps by @fabiodalez-dev in #241
• feat(mobile-api): sortable catalog search (title/date) with sort-aware keyset by @fabiodalez-dev in #242
• feat(copies): per-copy labels + loan/return by code + camera scanner (#238) by @fabiodalez-dev in #243
• style(frontend): theme every hardcoded color via CSS variables (starts with the 'same series' box) by @fabiodalez-dev in #244
• fix(auth): honor the "Remember me" checkbox (field-name mismatch) by @fabiodalez-dev in #245
• fix(settings): make orphaned settings actually work (audit follow-up) by @fabiodalez-dev in #246
• feat(book-club): Uwe #138 feedback — external proposals, meeting/member edit, affinity fix by @fabiodalez-dev in #247
• Loan workflow (#238): camera scanner unblocked + copy-code identifies book, copy/subtitle in details & receipt by @fabiodalez-dev in #248

Full Changelog: v0.7.30...v0.7.31