Standardize stop-after fields to +1 month across all workflows

[Copilot]

All workflow stop-after fields now use +1 month instead of the previous mix of +48h and +30d values.

Changes

• 15 workflow files: Updated stop-after from +48h or +30d to +1 month
  • Comments updated to reflect "1 month" where previously stated "48 hours" or "30 days"
• Documentation: Updated docs/daily-progress.md timeout protection reference

Example

- stop-after: +48h # workflow will no longer trigger after 48 hours
+ stop-after: +1 month # workflow will no longer trigger after 1 month

- stop-after: +30d # workflow will no longer trigger after 30 days. Remove this and recompile to run indefinitely
+ stop-after: +1 month # workflow will no longer trigger after 1 month. Remove this and recompile to run indefinitely

Original prompt

Update all "stop-after" fields to use "+1 month"

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