Accelerate rules-first feedback and integrate native Strongholds

Apply user priority: save/recovery/privacy/custody assurance after all rules. Add quick types/lint, concise failure-preserving reporter, verbose mode, actual empty-execution guard, signal handling and focused verify name selection; compact canonical context/handoffs without mass moves. Tooling15, six negative CLI, named/empty source-bound smokes,206 doc links; same15-case278B vs2455B,2.35s vs2.36s no compute speedclaim. Native Advanced Ix/CHOAM47-card Stronghold profile: actual firstMentat/HMS/sixeffects,18native/four legalpolicies,five genuine2..6games3129actions/no rejection, human390px LAUDR2WNv14 bank2/personal1 plan and real battle. Earlier162/6513 checks before assurance amendment; finalquick25/build/guide pass. No new preservation/privacy audit or public/deployed/full-mode claim.

tools/test-discovery.ts

@@ -37,6 +37,8 @@ export function selectTests(
   suite: TestSuite,
   filters: string[] = [],
 ): TestFile[] {
+  if (filters.some((filter) => !filter))
+    throw new Error('Filename filters must not be empty.');
   const selected = files.filter(({ path, kind }) => {
     const included =
       suite === 'all' ||