itsrubberduck 672ac18ac7 fix(sim-control): narrow SimControlParseResult via type predicates ...

3fe0ea5 left `nuxt typecheck` failing on main:

  useLiveAtcSession.ts: Property 'reason' does not exist on type
  'SimControlParseResult'.

Cause: the union is discriminated by a boolean, and the project builds
with `strict: false` (nuxt.config.ts). With strictNullChecks off,
TypeScript does not treat `true`/`false` literal types as discriminants,
so `if (r.matched) … else r.reason` never narrows. Nothing about the
sim-control types themselves is wrong — the same three lines with any
boolean-discriminated union fail identically.

Adds isSimControlMatch/isSimControlRejection type predicates, which narrow
regardless of strictNullChecks, and routes the one caller through them.
Turning on strictNullChecks would fix it at the root but is a repo-wide
change, not a bug fix.

The pre-push hook was correctly refusing to push this; origin/main is
clean, so the breakage never escaped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-16 17:51:09 +02:00

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