Refactor Playwright tests and update configurations

- Consolidated kindness and penalty tests into single files to ensure serial execution and prevent conflicts.
- Updated Playwright configuration to define separate test buckets for child options and create child tests, ensuring proper execution order.
- Added new tests for child kebab menu options including editing, deleting points, and confirming child deletion.
- Removed obsolete tests for kindness and penalty default management.
- Updated authentication tokens in user.json for improved security.
- Enhanced test reliability by implementing retry logic for UI interactions in the create-child happy path test.

frontend/vue-app/playwright.config.ts

@@ -40,10 +40,46 @@ export default defineConfig({
     { name: 'setup-no-pin', testMatch: /auth-no-pin\.setup\.ts/ },
 
     {
-      name: 'chromium',
+      // Bucket A: child-options tests — run before create-child so that
+      // deleteAllChildren() in happy-path.spec.ts cannot delete children
+      // that these tests are actively using.
+      name: 'chromium-child-options',
       use: { ...devices['Desktop Chrome'], storageState: STORAGE_STATE },
       dependencies: ['setup'],
-      testIgnore: [/\/mode_child\//],
+      testMatch: [/mode_parent\/child-options\/.+\.spec\.ts/],
+    },
+
+    {
+      // Bucket B: create-child tests — depends on chromium-child-options so it
+      // starts only after all child-options tests have finished and cleaned up.
+      // This guarantees deleteAllChildren() runs in a quiet window.
+      name: 'chromium-create-child',
+      use: { ...devices['Desktop Chrome'], storageState: STORAGE_STATE },
+      dependencies: ['setup', 'chromium-child-options'],
+      testMatch: [/mode_parent\/create-child\/.+\.spec\.ts/],
+    },
+
+    {
+      // Bucket: tests that mutate shared system-default items (chores/kindness/penalties).
+      // fullyParallel:false prevents files from being split across workers;
+      // the merged kindness-default and penalty-default files use mode:'serial'
+      // internally to guarantee the convert and delete tests never run in parallel.
+      name: 'chromium-default-tasks',
+      use: { ...devices['Desktop Chrome'], storageState: STORAGE_STATE },
+      dependencies: ['setup'],
+      testMatch: [/mode_parent\/tasks\/.*default\.spec\.ts/],
+      fullyParallel: false,
+    },
+
+    {
+      name: 'chromium-tasks-rewards',
+      use: { ...devices['Desktop Chrome'], storageState: STORAGE_STATE },
+      dependencies: ['setup'],
+      testIgnore: [
+        /\/mode_child\//,
+        /mode_parent\/(create-child|child-options)\//,
+        /mode_parent\/tasks\/.*default\.spec\.ts/,
+      ],
     },
 
     {