v0.9.0 - Usage calendar

Your 5h allowance can run out while much of the weekly pool goes unused.
ccpace --calendar puts both conditions on one screen, with a browsable
week, hourly usage patterns, quota-period history, and alerts.

• Spectrum, Quiet, and Paper palettes. Change the theme from the picker,
  with Ctrl+t, or through --theme / CCPACE_THEME.
• Account-wide and model-scoped limits stay separate. Forecasts use the
  shared history model and stop at the current quota or access boundary.
• Missing observations stay blank; recorded zero remains 0.0. Long
  observation gaps are not assigned to individual hours. Select an interval
  for its evidence, or press Enter for hourly detail.
• Persistent warning transitions, acknowledgement, and JSON notifier hooks.
  Forecast warnings require two distinct observations. Stale data and
  escalation into a cap cannot announce recovery. No execution control.
• ccpace --calendar --demo runs synthetic scenarios without credentials,
  provider requests, usage writes, or notifications.

The calendar uses Textual and requires the package or a full checkout.
The compact ccpace and --watch views remain available. Supported on
macOS and Linux with Python 3.11+. Weekly underuse thresholds are
experimental; forecasts are estimates, not promised capacity.

uvx --from ccpace==0.9.0 ccpace --calendar --demo