Remove obsolete scripts and files, update site builder configurations

- Deleted the `import_plans.py`, `run_tests.py`, and `test_run.py` scripts as they are no longer needed.
- Updated the initial migration dependency in `0001_initial.py` to reflect recent changes in the `igny8_core_auth` app.
- Enhanced the implementation plan documentation to include new phases and updates on the site builder project.
- Updated the `vite.config.ts` and `package.json` to integrate testing configurations and dependencies for the site builder.

site-builder/src/state/__tests__/siteDefinitionStore.test.ts

@@ -0,0 +1,95 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { useSiteDefinitionStore } from '../siteDefinitionStore';
+import type { SiteStructure, PageBlueprint } from '../../types/siteBuilder';
+
+describe('siteDefinitionStore', () => {
+  beforeEach(() => {
+    useSiteDefinitionStore.setState({
+      structure: undefined,
+      pages: [],
+      selectedSlug: undefined,
+    });
+  });
+
+  it('initializes with empty state', () => {
+    const state = useSiteDefinitionStore.getState();
+    expect(state.pages).toEqual([]);
+    expect(state.structure).toBeUndefined();
+    expect(state.selectedSlug).toBeUndefined();
+  });
+
+  it('sets structure and auto-selects first page', () => {
+    const mockStructure: SiteStructure = {
+      site: { name: 'Test Site' },
+      pages: [
+        { slug: 'home', title: 'Home', type: 'home', blocks: [] },
+        { slug: 'about', title: 'About', type: 'about', blocks: [] },
+      ],
+    };
+
+    useSiteDefinitionStore.getState().setStructure(mockStructure);
+
+    const state = useSiteDefinitionStore.getState();
+    expect(state.structure).toEqual(mockStructure);
+    expect(state.selectedSlug).toBe('home');
+  });
+
+  it('sets pages and auto-selects first page if none selected', () => {
+    const mockPages: PageBlueprint[] = [
+      {
+        id: 1,
+        site_blueprint: 1,
+        slug: 'services',
+        title: 'Services',
+        type: 'services',
+        status: 'ready',
+        order: 0,
+        blocks_json: [],
+      },
+    ];
+
+    useSiteDefinitionStore.getState().setPages(mockPages);
+
+    const state = useSiteDefinitionStore.getState();
+    expect(state.pages).toEqual(mockPages);
+    expect(state.selectedSlug).toBe('services');
+  });
+
+  it('preserves selected slug when setting pages if already selected', () => {
+    useSiteDefinitionStore.setState({ selectedSlug: 'about' });
+
+    const mockPages: PageBlueprint[] = [
+      {
+        id: 1,
+        site_blueprint: 1,
+        slug: 'home',
+        title: 'Home',
+        type: 'home',
+        status: 'ready',
+        order: 0,
+        blocks_json: [],
+      },
+      {
+        id: 2,
+        site_blueprint: 1,
+        slug: 'about',
+        title: 'About',
+        type: 'about',
+        status: 'ready',
+        order: 1,
+        blocks_json: [],
+      },
+    ];
+
+    useSiteDefinitionStore.getState().setPages(mockPages);
+
+    const state = useSiteDefinitionStore.getState();
+    expect(state.selectedSlug).toBe('about');
+  });
+
+  it('selects page by slug', () => {
+    useSiteDefinitionStore.getState().selectPage('contact');
+    expect(useSiteDefinitionStore.getState().selectedSlug).toBe('contact');
+  });
+});
+