AI connector 17.7.2 / 18.4.1: long prompts no longer fail the job

AI connector: a system prompt over ~2,000 characters failed the job with "String or binary data would be truncated in table 'Translate_Jobs'". The copy of the prompt kept for "View Prompt" is now cut to 500 characters when the job's details won't fit the 2,048-character column, and a long batch error list is trimmed with a count. The full prompt still goes to the model
Released 17.7.2 and 18.4.1 to NuGet, with the fix forward-merged from v17 into v18
AI connector: Translation Manager core package minimums raised to 17.10.0 (v17) and 18.4.0 (v18), PRs open, no release