Turn off no-await-in-loop, consistent-return and switch-exhaustiveness-check, turn on no-array-reduce, and restore the plain loops

scripts/project-lint.ts

@@ -247,8 +247,6 @@ const rules: DummyRuleMap = {
   // Collides with explicit-types `no-undefined-type`: a `let` that `try`
   // assigns would need `T | undefined`.
   "init-declarations": "off",
-  // Collides with `no-await-in-loop`: sequential steps chain through `reduce`.
-  "unicorn/no-array-reduce": "off",
   // Collides with literal Gitea Actions `${{ }}` expressions in workflow strings.
   "no-template-curly-in-string": "off",
   // Node code, everywhere: this action runs on Node.
@@ -264,6 +262,12 @@ const rules: DummyRuleMap = {
   // PENDING USER: a fitting `name` needs a constructor and changes logged
   // error names.
   "unicorn/custom-error-definition": "off",
+  // Sequential awaits are intentional; workarounds cost more than they save.
+  "no-await-in-loop": "off",
+  // Not type-aware; TypeScript's `noImplicitReturns` covers it.
+  "consistent-return": "off",
+  // TypeScript's type checking covers exhaustive switches.
+  "typescript/switch-exhaustiveness-check": "off",
   // Off, too much churn:
   // Literal numbers read better than a constant per use.
   "no-magic-numbers": "off",