Fleet apps run the gates from the published tag, so v1.11.0 was still
validating manifests against schema 2.26.0 even though main had synced to
2.29.0 twice over. dossiq#1729 is what that looks like from an app: gate-53
failing a Dashboard for includeFields / fieldOverrides / size / columns on
an open-form header action, all four of which CnActionButtons binds onto
CnFormDialog and the runtime renders.

This tag ships:

  * schema 2.29.0, byte-identical to nextcloud-vue development (#664, #667)
  * families K and L in test_gate_45_to_55_acceptance.sh, so a stale
    vendored schema is caught here rather than in an app's CI (#671)
  * BUILT_IN_WIDGET_KEYS synced to the library, ending a false positive
    that told apps to register a component they do not own (#671)
  * gate-107, the seven-item app chrome check (#668)

Full helper-suite run on this exact commit: 104 passed, 0 failed, 2
quarantined with reasons.