Changes:
- #3258: Avoid displaying files in repo/folder picker for BG sessions
- #3255: Disable /compact slash command in Claude session agent
- #3254: Avoid checking if copilot cli version cannot not be parsed in powershell script
- #3253: Update family property to use model ID in byokKnownModelToAPIInfo function
- #3252: Add infer and agents fields to Plan agent config and serialization
- #3251: Remove provider activation events for offline chat scenario
- #3250: ghost: support isShown and isFromCache for provideInlineEdit
- #3248: refactor: shorten agent customization skill docs and clarify agent fields
- #3244: Fix folder name in agent session window
- #3245: handle read errors more gracefu