fix(FN-3947): strip forwarded vitest silent flags

packages/cli/src/__tests__/root-test-command.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from "vitest";
 import {
   decideExecutionPlan,
+  normalizeForwardedArgs,
   resolveAffectedPackages,
   shouldForceFullSuite,
 } from "../../../../scripts/test-changed.mjs";
@@ -55,6 +56,12 @@ describe("root test command changed-only planning", () => {
     expect(shouldForceFullSuite(["package.json"])).toBe(true);
     expect(shouldForceFullSuite(["packages/core/src/store.ts"])).toBe(false);
   });
+
+  it("strips forwarded silent flags so package vitest scripts do not receive duplicates", () => {
+    expect(
+      normalizeForwardedArgs(["--full", "--silent", "--silent=passed-only", "--reporter=dot"]),
+    ).toEqual(["--reporter=dot"]);
+  });
 });
 
 describe("CI shard test planner", () => {

scripts/test-changed.mjs

@@ -813,6 +813,18 @@ export function decideExecutionPlan({
   };
 }
 
+export function normalizeForwardedArgs(argv) {
+  const normalized = [];
+
+  for (const arg of argv) {
+    if (arg === "--full" || arg === "--no-cache") continue;
+    if (arg === "--silent" || arg.startsWith("--silent=")) continue;
+    normalized.push(arg);
+  }
+
+  return normalized;
+}
+
 export function main(argv = process.argv.slice(2)) {
   const forceFullSuite =
     process.env.CI === "true" ||
@@ -823,7 +835,7 @@ export function main(argv = process.argv.slice(2)) {
     process.env.FUSION_TEST_NO_CACHE === "1" ||
     argv.includes("--no-cache");
 
-  const forwardedArgs = argv.filter((arg) => arg !== "--full" && arg !== "--no-cache");
+  const forwardedArgs = normalizeForwardedArgs(argv);
 
   run("pnpm", ["sync:fusion-skill:check"]);
   ensureTestArtifacts(rootDir);