Billing got smarter about work that's mid-flight, so you're never surprised by a hard stop.

• New — In-flight runs are allowed to finish; a server-side pre-run check warns before a task that can't afford to complete.
• New — Runs abort cleanly when your balance hits zero, mid-run, instead of failing opaquely.
• Improved — Two-bar credit card with expiry timers; clearer low-balance warnings that reflect the new mid-run policy.