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/docs/DEMO_MODE.md

@@ -273,7 +273,7 @@ NEXT_PUBLIC_DEMO_MODE=true npm run dev
 **1. Fork Repository**
 
 ```bash
-gh repo fork your-repo/fast-next-template
+git clone https://gitea.pragmazest.com/cardosofelipe/syndarix.git
 ```
 
 **2. Connect to Vercel**

frontend/docs/I18N.md

@@ -1,6 +1,6 @@
 # Internationalization (i18n) Guide
 
-This document describes the internationalization implementation in the PragmaStack.
+This document describes the internationalization implementation in Syndarix.
 
 ## Overview
 

frontend/docs/branding/02-visual-identity.md

@@ -4,10 +4,10 @@
 
 ## Logo
 
-The **PragmaStack** logo represents the core values of the project: structure, speed, and clarity.
+The **Syndarix** logo represents the core values of the project: structure, speed, and clarity.
 
 <div align="center">
-  <img src="../../public/logo.svg" alt="PragmaStack Logo" width="300" />
+  <img src="../../public/logo.svg" alt="Syndarix Logo" width="300" />
   <p><em>The Stack: Geometric layers representing the full-stack architecture.</em></p>
 </div>
 
@@ -16,7 +16,7 @@ The **PragmaStack** logo represents the core values of the project: structure, s
 For smaller contexts (favicons, headers), we use the simplified icon:
 
 <div align="center">
-  <img src="../../public/logo-icon.svg" alt="PragmaStack Icon" width="64" />
+  <img src="../../public/logo-icon.svg" alt="Syndarix Icon" width="64" />
 </div>
 
 For now, we use the **Lucide React** icon set for all iconography. Icons should be used sparingly and meaningfully to enhance understanding, not just for decoration.

frontend/docs/branding/README.md

@@ -1,6 +1,6 @@
 # Branding Guidelines
 
-Welcome to the **PragmaStack** branding guidelines. This section defines who we are, how we speak, and how we look.
+Welcome to the **Syndarix** branding guidelines. This section defines who we are, how we speak, and how we look.
 
 ## Contents
 

frontend/docs/design-system/00-quick-start.md

@@ -1,6 +1,6 @@
 # Quick Start Guide
 
-Get up and running with the PragmaStack design system immediately. This guide covers the essential patterns you need to build 80% of interfaces.
+Get up and running with the Syndarix design system immediately. This guide covers the essential patterns you need to build 80% of interfaces.
 
 ---
 

frontend/docs/design-system/08-ai-guidelines.md

@@ -1,6 +1,6 @@
 # AI Code Generation Guidelines
 
-**For AI Assistants**: This document contains strict rules for generating code in the PragmaStack project. Follow these rules to ensure generated code matches the design system perfectly.
+**For AI Assistants**: This document contains strict rules for generating code in the Syndarix project. Follow these rules to ensure generated code matches the design system perfectly.
 
 ---
 

frontend/docs/design-system/99-reference.md

@@ -1,6 +1,6 @@
 # Quick Reference
 
-**Bookmark this page** for instant lookups of colors, spacing, typography, components, and common patterns. Your go-to cheat sheet for the PragmaStack design system.
+**Bookmark this page** for instant lookups of colors, spacing, typography, components, and common patterns. Your go-to cheat sheet for the Syndarix design system.
 
 ---
 

frontend/docs/design-system/README.md

@@ -1,6 +1,6 @@
 # Design System Documentation
 
-**PragmaStack Design System** - A comprehensive guide to building consistent, accessible, and beautiful user interfaces.
+**Syndarix Design System** - A comprehensive guide to building consistent, accessible, and beautiful user interfaces.
 
 ---