v1.41.2 — Channel Help Text + Refresh + Full Pagination

• Channel list auto-paginates to show ALL workspace channels (was only first page)
• Private channel help text on all channel dropdowns: 'Use /invite @TinyHands in your private channel'
• Refresh button to refetch channels after inviting the bot
• Applied to: AI chat creation flow, Agent Detail Add Channel dialog
• FEATURES.md now requires explicit user approval before edits