feat: Refactor ScheduleModal to support interval scheduling with date input and deadline toggle

- Updated ChoreSchedule model to include anchor_date and interval_has_deadline.
- Refactored interval scheduling logic in scheduleUtils to use anchor_date.
- Introduced DateInputField component for selecting anchor dates in ScheduleModal.
- Enhanced ScheduleModal to include a stepper for interval days and a toggle for deadline.
- Updated tests for ScheduleModal and scheduleUtils to reflect new interval scheduling logic.
- Added DateInputField tests to ensure proper functionality and prop handling.

frontend/vue-app/vitest.config.ts

@@ -1,15 +1,18 @@
-import { fileURLToPath } from 'node:url'
-import { mergeConfig, defineConfig, configDefaults } from 'vitest/config'
-import viteConfig from './vite.config'
+import { fileURLToPath, URL } from 'node:url'
+import { defineConfig, configDefaults } from 'vitest/config'
+import vue from '@vitejs/plugin-vue'
 
-export default mergeConfig(
-  viteConfig,
-  defineConfig({
-    test: {
-      environment: 'jsdom',
-      exclude: [...configDefaults.exclude, 'e2e/**'],
-      root: fileURLToPath(new URL('./', import.meta.url)),
-      setupFiles: ['src/test/setup.ts'],
+export default defineConfig({
+  plugins: [vue()],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url)),
     },
-  }),
-)
+  },
+  test: {
+    environment: 'jsdom',
+    exclude: [...configDefaults.exclude, 'e2e/**'],
+    root: fileURLToPath(new URL('./', import.meta.url)),
+    setupFiles: ['src/test/setup.ts'],
+  },
+})