docs: update TESTING.md with UI/UX fixes verification

docs/TESTING.md

@@ -138,7 +138,31 @@ STACK_REGISTRY_ID=bKDYM5X7NN34x_lRDjWbz      # Registry ID for Docker auth
 1. **Registry URL format** - Use `git.app.flexinit.nl`, NOT `https://git.app.flexinit.nl`
 2. **Username in image path** - Must be `oussamadouhou`, not `odouhou`
 3. **Dokploy URL** - Must use public URL for container-to-container communication
-4. **Health check** - SSL errors treated as "alive" during cert provisioning
+4. **Health check** - Now uses Dokploy API status check (not HTTP fetch)
+5. **Resource limits** - Removed temporarily (Dokploy API format issues with CPU/memory values)
+6. **Typewriter race condition** - Fixed by tracking active instances and canceling previous
+
+### UI/UX Fixes (2026-01-10 v2)
+
+| Issue | Fix | Status |
+|-------|-----|--------|
+| Double letters in typewriter | Track active instances, cancel before starting new | ✅ Verified |
+| Flag emojis not showing | Replaced with text labels (NL/AR/EN) | ✅ Verified |
+| SSE disconnects during deployment | Use Dokploy API status instead of HTTP health check | ✅ Verified |
+| 'yourname' not translated | Added translation key per language | ✅ Verified |
+
+### Health Check Change
+
+The health check was changed from HTTP fetch (which failed from inside Docker) to Dokploy API status check:
+
+```typescript
+// Before: HTTP fetch (failed - container can't reach external URL)
+const response = await fetch(`${state.url}/`);
+
+// After: Dokploy API status check (works)
+const app = await this.client.getApplication(applicationId);
+if (app.applicationStatus === 'done') { /* success */ }
+```
 
 ### Test Commands