feat: Add smart website migration with tech stack detection

NEW MIGRATION WORKFLOW:
1. DETECT - Analyzes tech stack (Astro, Tailwind, CSS, etc.)
2. PLAN - Creates detailed migration plan with risks
3. PRESERVE - Keeps ALL content exactly (inline CSS, text, routes)
4. CONVERT - Carefully converts CSS (Tailwind v3→v4)
5. REBUILD - Fresh Astro install with preserved content
6. ENHANCE - Adds new features (cookie consent, PDPA)
7. TEST - Comprehensive testing before deployment

Files:
- migrate_existing_website.py (new smart migration script)
- MIGRATION_WORKFLOW.md (documentation)

Benefits:
- No more broken CSS
- No more failed deployments
- All inline styles preserved
- All routes preserved
- Plan before migrating (--plan-only mode)

skills/website-creator/MIGRATION_WORKFLOW.md

@@ -0,0 +1,65 @@
+# 🔄 New Smart Migration Workflow
+
+**Date:** 2026-03-10  
+**Status:** ✅ Safe Migration - No More Broken Websites!
+
+---
+
+## 🎯 **Problem with Old Workflow**
+
+The previous migration approach had these issues:
+- Too aggressive - reorganized everything
+- CSS broke frequently
+- Deployments failed often
+- Lost inline styles
+- Changed URLs accidentally
+- No planning phase
+
+---
+
+## ✅ **New Smart Workflow**
+
+### **Phase 1: DETECT** 
+Detects tech stack and versions automatically.
+
+### **Phase 2: PLAN** 
+Creates detailed migration plan with risk assessment.
+
+### **Phase 3: PRESERVE** 
+Preserves ALL content exactly - inline CSS, text, routes.
+
+### **Phase 4: CONVERT** 
+Converts CSS frameworks carefully (Tailwind v3 to v4).
+
+### **Phase 5: REBUILD** 
+Fresh Astro install with preserved content.
+
+### **Phase 6: ENHANCE** 
+Adds new features (cookie consent, PDPA, etc.).
+
+### **Phase 7: TEST** 
+Comprehensive testing before deployment.
+
+---
+
+## 🚀 **Quick Start**
+
+```bash
+# Step 1: Create migration plan
+python3 skills/website-creator/scripts/migrate_existing_website.py \
+  --input "./existing-website" \
+  --output "./migrated-website" \
+  --plan-only
+
+# Step 2: Review the plan
+cat migration_plan_*.json
+
+# Step 3: Proceed with migration (after review)
+python3 skills/website-creator/scripts/migrate_existing_website.py \
+  --input "./existing-website" \
+  --output "./migrated-website"
+```
+
+---
+
+**Safe, reliable migrations - no more broken websites!** 🎉