Makes the free Windmill AI tier legible to the user and closes an abuse hole.
Backend:
- AIConfig gains a response-only free_tier marker (skip_deserializing so a
client can't store a forged one via edit_copilot_config). get_copilot_info
keeps returning it once the grant is spent, so the client knows AI is off
because the grant ran out, not because nothing was configured.
- Per-user grant becomes one-time (migration drops the day key from
ai_free_token_usage); the daily table stays as the instance kill-switch.
- Reserve-then-reconcile metering (see EE commit) so a mid-stream disconnect
can no longer dodge the usage report and get metered zero.
Frontend:
- copilotInfo carries freeTier; model settings show a "Free" pill and a
usage meter that warns past 80%.
- The home chat and the session chat show a dedicated "you've used your free
Windmill AI, add your own API key" state instead of the generic
"no provider configured" one.
- A failed send re-fetches copilot_info so the exhausted state (and its
banner) appears live, without a page reload.
Bumps ee-repo-ref.txt to the matching EE commit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Diego ImbertandClaude Opus 4.8
76bd706112