- Wrap fetch in try/finally so isAdjustingTimeBank is always reset,
even on network errors that cause fetch to throw
- Guard against totalSeconds rounding to 0 for tiny fractional inputs
- Reject API requests when the draft is not in 'draft' status (409)
- Set input min to 0.001 so the browser rejects zero in native validation
https://claude.ai/code/session_013wxPKzLUCx3nC3LpxgjvQL