feat: complete Syndarix rebranding from PragmaStack

- Update PROJECT_NAME to Syndarix in backend config
- Update all frontend components with Syndarix branding
- Replace all GitHub URLs with Gitea Syndarix repo URLs
- Update metadata, headers, footers with new branding
- Update tests to match new URLs
- Update E2E tests for new repo references
- Preserve "Built on PragmaStack" attribution in docs

Closes #13

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/tests/app/page.test.tsx

@@ -1,6 +1,6 @@
 /**
  * Tests for Home Page
- * Tests for the new PragmaStack landing page
+ * Tests for the new Syndarix landing page
  */
 
 import { render, screen, within, fireEvent } from '@testing-library/react';
@@ -87,13 +87,13 @@ describe('HomePage', () => {
     it('renders header with logo', () => {
       render(<Home />);
       const header = screen.getByRole('banner');
-      expect(within(header).getByText('PragmaStack')).toBeInTheDocument();
+      expect(within(header).getByText('Syndarix')).toBeInTheDocument();
     });
 
     it('renders footer with copyright', () => {
       render(<Home />);
       const footer = screen.getByRole('contentinfo');
-      expect(within(footer).getByText(/PragmaStack. MIT Licensed/i)).toBeInTheDocument();
+      expect(within(footer).getByText(/Syndarix. MIT Licensed/i)).toBeInTheDocument();
     });
   });
 
@@ -210,7 +210,7 @@ describe('HomePage', () => {
   describe('Philosophy Section', () => {
     it('renders why this template exists', () => {
       render(<Home />);
-      expect(screen.getByText(/Why PragmaStack\?/i)).toBeInTheDocument();
+      expect(screen.getByText(/Why Syndarix\?/i)).toBeInTheDocument();
     });
 
     it('renders what you wont find section', () => {

frontend/tests/components/home/CTASection.test.tsx

@@ -71,7 +71,7 @@ describe('CTASection', () => {
     );
 
     const githubLink = screen.getByRole('link', { name: /get started on github/i });
-    expect(githubLink).toHaveAttribute('href', 'https://github.com/your-org/fast-next-template');
+    expect(githubLink).toHaveAttribute('href', 'https://gitea.pragmazest.com/cardosofelipe/syndarix');
     expect(githubLink).toHaveAttribute('target', '_blank');
     expect(githubLink).toHaveAttribute('rel', 'noopener noreferrer');
   });
@@ -101,7 +101,7 @@ describe('CTASection', () => {
     const docsLink = screen.getByRole('link', { name: /read documentation/i });
     expect(docsLink).toHaveAttribute(
       'href',
-      'https://github.com/your-org/fast-next-template#documentation'
+      'https://gitea.pragmazest.com/cardosofelipe/syndarix#documentation'
     );
     expect(docsLink).toHaveAttribute('target', '_blank');
     expect(docsLink).toHaveAttribute('rel', 'noopener noreferrer');

frontend/tests/components/home/Header.test.tsx

@@ -55,7 +55,7 @@ describe('Header', () => {
       />
     );
 
-    expect(screen.getByText('PragmaStack')).toBeInTheDocument();
+    expect(screen.getByText('Syndarix')).toBeInTheDocument();
   });
 
   it('logo links to homepage', () => {
@@ -67,7 +67,7 @@ describe('Header', () => {
       />
     );
 
-    const logoLink = screen.getByRole('link', { name: /PragmaStack/i });
+    const logoLink = screen.getByRole('link', { name: /Syndarix/i });
     expect(logoLink).toHaveAttribute('href', '/');
   });
 
@@ -97,12 +97,12 @@ describe('Header', () => {
 
       const githubLinks = screen.getAllByRole('link', { name: /github/i });
       const desktopGithubLink = githubLinks.find((link) =>
-        link.getAttribute('href')?.includes('github.com')
+        link.getAttribute('href')?.includes('gitea.pragmazest.com')
       );
 
       expect(desktopGithubLink).toHaveAttribute(
         'href',
-        'https://github.com/your-org/fast-next-template'
+        'https://gitea.pragmazest.com/cardosofelipe/syndarix'
       );
       expect(desktopGithubLink).toHaveAttribute('target', '_blank');
       expect(desktopGithubLink).toHaveAttribute('rel', 'noopener noreferrer');

frontend/tests/components/home/HeroSection.test.tsx

@@ -100,7 +100,7 @@ describe('HeroSection', () => {
     );
 
     const githubLink = screen.getByRole('link', { name: /view on github/i });
-    expect(githubLink).toHaveAttribute('href', 'https://github.com/your-org/fast-next-template');
+    expect(githubLink).toHaveAttribute('href', 'https://gitea.pragmazest.com/cardosofelipe/syndarix');
     expect(githubLink).toHaveAttribute('target', '_blank');
     expect(githubLink).toHaveAttribute('rel', 'noopener noreferrer');
   });

frontend/tests/components/layout/Footer.test.tsx

@@ -20,7 +20,7 @@ describe('Footer', () => {
 
       const currentYear = new Date().getFullYear();
       expect(
-        screen.getByText(`© ${currentYear} PragmaStack. All rights reserved.`)
+        screen.getByText(`© ${currentYear} Syndarix. All rights reserved.`)
       ).toBeInTheDocument();
     });
 

frontend/tests/components/layout/Header.test.tsx

@@ -63,7 +63,7 @@ describe('Header', () => {
 
       render(<Header />);
 
-      expect(screen.getByText('PragmaStack')).toBeInTheDocument();
+      expect(screen.getByText('Syndarix')).toBeInTheDocument();
     });
 
     it('renders theme toggle', () => {

frontend/tests/lib/i18n/metadata.test.ts

@@ -27,8 +27,8 @@ describe('metadata utilities', () => {
     });
 
     it('should have English and Italian names', () => {
-      expect(siteConfig.name.en).toBe('PragmaStack');
-      expect(siteConfig.name.it).toBe('PragmaStack');
+      expect(siteConfig.name.en).toBe('Syndarix');
+      expect(siteConfig.name.it).toBe('Syndarix');
     });
 
     it('should have English and Italian descriptions', () => {