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/complete-todos.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+# Parallel TODO Completion Script
+# This script helps track and complete todos in priority order
+
+echo -e "\n========================================"
+echo -e "   TODO COMPLETION TRACKER"
+echo -e "========================================\n"
+
+# Read remaining todos
+TODOS_FILE="docs/REMAINING_TODOS.md"
+if [ -f "$TODOS_FILE" ]; then
+    echo -e "\033[0;33mReading todos from: $TODOS_FILE\033[0m"
+    
+    # Count remaining todos
+    REMAINING=$(grep -c "^- \[ \]" "$TODOS_FILE" 2>/dev/null || echo "0")
+    COMPLETED=$(grep -c "^- \[x\]" "$TODOS_FILE" 2>/dev/null || echo "0")
+    
+    echo -e "\n\033[0;36mProgress:\033[0m"
+    echo -e "  Remaining: \033[0;33m$REMAINING todos\033[0m"
+    echo -e "  Completed: \033[0;32m$COMPLETED todos\033[0m"
+    
+    if [ "$REMAINING" -gt 0 ] || [ "$COMPLETED" -gt 0 ]; then
+        TOTAL=$((REMAINING + COMPLETED))
+        PERCENT=$(awk "BEGIN {printf \"%.1f\", ($COMPLETED / $TOTAL) * 100}")
+        if (( $(echo "$PERCENT > 50" | bc -l) )); then
+            color="\033[0;32m"
+        elif (( $(echo "$PERCENT > 25" | bc -l) )); then
+            color="\033[0;33m"
+        else
+            color="\033[0;31m"
+        fi
+        echo -e "  Completion: ${color}${PERCENT}%\033[0m"
+    fi
+else
+    echo -e "\033[0;33m⚠️  Todos file not found: $TODOS_FILE\033[0m"
+fi
+
+echo -e "\n\033[0;36mQuick Actions:\033[0m"
+echo -e "  1. Check service status: ./scripts/check-status.sh"
+echo -e "  2. Verify services: ./scripts/verify-services.sh"
+echo -e "  3. Test endpoints: ./scripts/test-curl.sh"
+echo -e "  4. Setup database: ./scripts/setup-database.sh"
+echo -e "  5. Fix frontend: ./scripts/fix-frontend.sh"
+echo ""
+