fleet: split-home-safe mosaic launcher (T110, P5-RM-009 stack side) (#1480)

packages/mosaic/src/framework/manifest-parity.spec.ts

@@ -148,6 +148,26 @@ describe.skipIf(!hasBash)('bash ↔ TS manifest parity (§6.1)', () => {
     const manifest = loadManifest(FRAMEWORK_ROOT);
     expect(bashSubtreeRoots().sort()).toEqual(frameworkSubtreeRoots(manifest).sort());
   });
+
+  it('fleet/bin ownership is exact and does not prune existing executables (T110 B1)', () => {
+    // fleet/bin carries estate executables this package does not ship. A
+    // subtree glob here would classify them framework-owned and keep-mode
+    // update would prune them. The manifest must own EXACTLY the two shipped
+    // launcher files and nothing else in fleet/bin, on BOTH resolvers.
+    const manifest = loadManifest(FRAMEWORK_ROOT);
+    const expected: Array<[string, string]> = [
+      ['fleet/bin/mosaic', 'framework'],
+      ['fleet/bin/test-mosaic-launcher.sh', 'framework'],
+      ['fleet/bin/seat-up.sh', 'operator'], // shipped-by-estate, unshipped here
+      ['fleet/bin/launch-seat.sh', 'operator'],
+      ['fleet/bin', 'operator'], // the directory itself is unlisted
+    ];
+    for (const [path, want] of expected) {
+      const ts = resolveOwnership(manifest, path);
+      expect(ts).toBe(want);
+      expect(bashResolve(path)).toBe(want);
+    }
+  });
 });
 
 /**