Fix oxlint --deny-warnings and eliminate all biome-ignores

--deny warnings was a no-op (not a valid category); the correct flag
is --deny-warnings. Fixed all 8 pre-existing warnings and removed
every biome-ignore from source and test files. Simplified the check
script to zero-tolerance: any biome-ignore now fails the build.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/hooks/use-encounter.ts

@@ -421,7 +421,10 @@ function dispatchEncounterAction(
 export function useEncounter() {
 	const { encounterPersistence, undoRedoPersistence } = useAdapters();
 	const [state, dispatch] = useReducer(encounterReducer, null, () =>
-		initializeState(encounterPersistence.load, undoRedoPersistence.load),
+		initializeState(
+			() => encounterPersistence.load(),
+			() => undoRedoPersistence.load(),
+		),
 	);
 	const { encounter, undoRedoState, events } = state;