Joseph Doherty 437fe154e7 feat(triggers): add WhileTrue fire mode for Conditional/Expression script triggers ...

Conditional and Expression script triggers gain an optional `mode` field
in their TriggerConfiguration JSON:

- OnTrue (default): unchanged edge/per-change firing. An absent mode field
  parses as OnTrue, so every existing trigger config behaves identically.
- WhileTrue: fires on the false->true edge, then re-fires on a periodic
  timer while the condition holds; stops on the true->false edge. The
  re-fire cadence is the script's MinTimeBetweenRuns; with none configured
  the trigger degrades to a single edge fire and logs a warning.

ScriptActor tracks condition truth state and manages a dedicated
"whiletrue-trigger" timer. ScriptTriggerConfigCodec and ScriptTriggerEditor
round-trip the mode and expose an OnTrue/WhileTrue selector for the two
trigger kinds. Design: docs/plans/2026-05-18-whiletrue-trigger-mode-design.md

Tests: 7 ScriptActor runtime tests (edge fire, timer re-fire, stop,
re-arm, no-MinTimeBetweenRuns degrade, OnTrue regressions) + 14 codec /
editor tests. SiteRuntime suite 206 green, CentralUI suite 295 green.

2026-05-18 10:44:11 -04:00

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