Guard source gear namespaces and retain recoverable legacy records (#9)

src/app/romDualClassPersistence.test.ts

@@ -58,7 +58,7 @@ describe("RoM dual-class persistence", () => {
         "priest:none": { "primary:face-bottom": "priest-flash-heal" },
       },
     });
-    expect(JSON.parse(storage.getItem(PROFILE_STORAGE_KEYS.database)!).version).toBe(7);
+    expect(JSON.parse(storage.getItem(PROFILE_STORAGE_KEYS.database)!).version).toBe(8);
   });
 
   it("locks selection to level ten and preserves separate bars through atomic swaps", () => {