Translation Manager: shipped 17.9.0, AI connector 17.6.0, forward-ported to v18

Released Jumoo.TranslationManager.AI 17.6.0 to NuGet — retry-on-failure, a redesigned Prompt Builder, Fast/Balanced/Quality presets, glossary support
Released Jumoo.TranslationManager 17.9.0 to NuGet (core + main) — a global Glossary, granular Translation Memory permissions, partial-batch-job and nothing-to-translate fixes
Published customer-facing notes on the companion Issues repo: v17.9.0 release
Forward-ported the whole 17.9.0 cycle into v18/main