docs: Update CHANGELOG and README for deployment models and troubleshooting

- Added multi-platform deployment architecture details (Web App, PWA, DApp) to README.md.
- Included comprehensive troubleshooting guides and fix scripts in README.md.
- Enhanced CHANGELOG.md with new features, fixes, and improvements, including TypeScript error resolutions and updated documentation structure.
- Revised development setup instructions in DEV_SETUP.md to reflect changes in script usage and environment variable setup.

scripts/check-status.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+# Quick Status Check Script
+
+echo -e "\n\033[0;36m=== Service Status ===\033[0m"
+
+# Check Webapp
+if nc -z localhost 3000 2>/dev/null; then
+    echo -e "\033[0;32m✅ Webapp (3000): Running\033[0m"
+    WEBAPP_RUNNING=true
+else
+    echo -e "\033[0;31m❌ Webapp (3000): Not running\033[0m"
+    WEBAPP_RUNNING=false
+fi
+
+# Check Orchestrator
+if nc -z localhost 8080 2>/dev/null; then
+    echo -e "\033[0;32m✅ Orchestrator (8080): Running\033[0m"
+    ORCH_RUNNING=true
+else
+    echo -e "\033[0;31m❌ Orchestrator (8080): Not running\033[0m"
+    ORCH_RUNNING=false
+fi
+
+# Check PostgreSQL
+if nc -z localhost 5432 2>/dev/null; then
+    echo -e "\033[0;32m✅ PostgreSQL (5432): Running\033[0m"
+else
+    echo -e "\033[0;33m⚠️  PostgreSQL (5432): Not running (optional)\033[0m"
+fi
+
+# Check Redis
+if nc -z localhost 6379 2>/dev/null; then
+    echo -e "\033[0;32m✅ Redis (6379): Running\033[0m"
+else
+    echo -e "\033[0;33m⚠️  Redis (6379): Not running (optional)\033[0m"
+fi
+
+echo -e "\n\033[0;36m=== Quick Access ===\033[0m"
+if [ "$WEBAPP_RUNNING" = true ]; then
+    echo -e "Frontend: http://localhost:3000"
+fi
+if [ "$ORCH_RUNNING" = true ]; then
+    echo -e "Backend:  http://localhost:8080"
+    echo -e "Health:   http://localhost:8080/health"
+fi
+
+echo ""
+