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chore(scripts): delete the four root scripts held back from the first cleanup PR #50783

Job	Run time
Lint · repo & tooling gates	5m 6s
Lint · CI, release & engine gates	5m 20s
Lint · ESLint	4m 10s
Lint · scoped · query-options erasure	5m 32s
Lint · scoped · slot lookup & corpus	5m 50s
Lint · docs & code guards	3m 11s
Type Check · consumer gates	10m 40s
Type Check · workspace	7m 27s
Lint · scoped · tooling self-tests	4m 44s
Lint · PM dispatch-gates	6m 35s
Type Check · source gates	4m 44s
Type Check · debt ledger	7m 40s
Lint & Repo Gates	3s
TypeScript Type Check	3s
	1h 11m 5s