Add deployment workflow & develop branch

DEPLOYMENT.md

@@ -0,0 +1,57 @@
+# Git Workflow & Deployment
+
+## Branch Strategy
+
+```
+main (production)
+    │
+    └── develop (staging)
+            │
+            └── feature branches
+```
+
+## Environments
+
+| Branch | URL | Purpose |
+|--------|-----|---------|
+| **main** | sitmente.com | Live production |
+| **develop** | sitmente-git-develop...vercel.app | Testing/staging |
+| **PR previews** | vercel.app/pr-*** | Feature testing |
+
+## Workflow
+
+### 1. Development (on VPS)
+```bash
+# Work on develop branch
+git checkout develop
+# ... make changes ...
+git add -A && git commit -m "Description"
+git push origin develop
+```
+
+### 2. Test on Staging
+- Vercel auto-deploys `develop` branch
+- URL: Check Vercel dashboard
+- Test all changes
+
+### 3. Production
+```bash
+# Merge to main
+git checkout main
+git merge develop
+git push origin main
+```
+
+## Vercel Auto-Deploy
+
+| Event | Action |
+|-------|--------|
+| Push to `main` | Auto-deploy to sitmente.com |
+| Push to `develop` | Auto-deploy to preview URL |
+| Open PR | Create preview deployment |
+
+## Current Status
+
+- ✅ **main** → sitmente.com (production)
+- ✅ **develop** → staging (testing)
+- ✅ **Preview deployments** → Auto for all branches