Calendar 1.0.123

• Return no clock display after a stopped or rejected selection, preventing
  the previous resource from appearing as the newly selected clock.
• Keep unavailable calendar navigation inert and verify recovery when an
  installed calendar is selected again.
• Pin Common and independently published resources to 1.19.75, including
  corrected executable-provider selection and the 31-calendar catalogue.
• Consume the Common fix for the 2060 Badi civil/solar-midnight boundary.
• Qualify unavailable-state transitions through native and GJS boundaries.