feat: complete full-stack development integration

🎯 Major Achievement: Insertr is now a complete, production-ready CMS

## 🚀 Full-Stack Integration Complete
- ✅ HTTP API Server: Complete REST API with SQLite database
- ✅ Smart Client Integration: Environment-aware API client
- ✅ Unified Development Workflow: Single command full-stack development
- ✅ Professional Tooling: Enhanced build, status, and health checking

## 🔧 Development Experience
- Primary: `just dev` - Full-stack development (demo + API server)
- Alternative: `just demo-only` - Demo site only (special cases)
- Build: `just build` - Complete stack (library + CLI + server)
- Status: `just status` - Comprehensive project overview

## 📦 What's Included
- **insertr-server/**: Complete HTTP API server with SQLite database
- **Smart API Client**: Environment detection, helpful error messages
- **Enhanced Build Pipeline**: Builds library + CLI + server in one command
- **Integrated Tooling**: Status checking, health monitoring, clean workflows

## 🧹 Cleanup
- Removed legacy insertr-old code (no longer needed)
- Simplified workflow (full-stack by default)
- Updated all documentation to reflect complete CMS

## 🎉 Result
Insertr is now a complete, professional CMS with:
- Real content persistence via database
- Professional editing interface
- Build-time content injection
- Zero-configuration deployment
- Production-ready architecture

Ready for real-world use! 🚀

justfile

@@ -10,13 +10,72 @@ install:
     npm install
     cd lib && npm install
 
-# Start development server with live reload
-dev:
-    npm run dev
+# Start full-stack development (primary workflow)
+dev: build-lib server-build
+    #!/usr/bin/env bash
+    echo "🚀 Starting Full-Stack Insertr Development..."
+    echo "================================================"
+    echo ""
+    echo "📝 Unified logs below (API server + Demo site):"
+    echo "🔌 [SERVER] = API server logs"
+    echo "🌐 [DEMO] = Demo site logs"
+    echo ""
+    
+    # Function to cleanup background processes
+    cleanup() {
+        echo ""
+        echo "🛑 Shutting down servers..."
+        kill $SERVER_PID $DEMO_PID 2>/dev/null || true
+        wait $SERVER_PID $DEMO_PID 2>/dev/null || true
+        echo "✅ Shutdown complete"
+        exit 0
+    }
+    trap cleanup SIGINT SIGTERM
+    
+    # Start API server with prefixed output
+    echo "🔌 Starting API server (localhost:8080)..."
+    cd insertr-server && ./insertr-server --port 8080 2>&1 | sed 's/^/🔌 [SERVER] /' &
+    SERVER_PID=$!
+    cd ..
+    
+    # Wait for server startup
+    echo "⏳ Waiting for API server startup..."
+    sleep 3
+    
+    # Check server health
+    if curl -s http://localhost:8080/health > /dev/null 2>&1; then
+        echo "✅ API server ready!"
+    else
+        echo "⚠️  API server may not be ready yet"
+    fi
+    
+    echo ""
+    echo "🌐 Starting demo site (localhost:3000)..."
+    echo "📝 Full-stack ready - edit content with real-time persistence!"
+    echo ""
+    
+    # Start demo site with prefixed output (this will block) - use local installation
+    cd {{justfile_directory()}} && npx --prefer-offline live-server demo-site --port=3000 --host=localhost --open=/index.html 2>&1 | sed 's/^/🌐 [DEMO] /' &
+    DEMO_PID=$!
+    
+    # Wait for both processes
+    wait $DEMO_PID $SERVER_PID
+
+# Demo site only (for specific use cases)
+demo-only:
+    @echo "🌐 Starting demo site only (no API server)"
+    @echo "⚠️  Content edits will not persist without API server"
+    npx --prefer-offline live-server demo-site --port=3000 --host=localhost --open=/index.html
 
 # Start development server for about page
-dev-about:
-    npm run dev:about
+dev-about: build-lib server-build
+    #!/usr/bin/env bash
+    echo "🚀 Starting full-stack development (about page)..."
+    cd insertr-server && ./insertr-server --port 8080 &
+    SERVER_PID=$!
+    sleep 3
+    npx --prefer-offline live-server demo-site --port=3000 --host=localhost --open=/about.html
+    kill $SERVER_PID 2>/dev/null || true
 
 # Check project status and validate setup
 check:
@@ -58,6 +117,25 @@ parse:
 servedev:
     cd insertr-cli && go run main.go servedev -i ../demo-site -p 3000
 
+# === Content API Server Commands ===
+
+# Build the content API server binary
+server-build:
+    cd insertr-server && go build -o insertr-server ./cmd/server
+
+# Start content API server (default port 8080)
+server port="8080":
+    cd insertr-server && ./insertr-server --port {{port}}
+
+# Start API server with auto-restart on Go file changes
+server-dev port="8080":
+    cd insertr-server && find . -name "*.go" | entr -r go run ./cmd/server --port {{port}}
+
+# Check API server health
+server-health port="8080":
+    @echo "🔍 Checking API server health..."
+    @curl -s http://localhost:{{port}}/health | jq . || echo "❌ Server not responding at localhost:{{port}}"
+
 # Clean all build artifacts
 clean:
     rm -rf lib/dist
@@ -79,6 +157,8 @@ dev-setup: install build-lib dev
 # Production workflow: install deps, build everything
 prod-build: install build
 
+
+
 # Show project status
 status:
     @echo "🏗️  Insertr Project Status"
@@ -89,5 +169,14 @@ status:
     @ls -la lib/package.json lib/src lib/dist 2>/dev/null || echo "   Missing library components"
     @echo "\n🔧 CLI files:"
     @ls -la insertr-cli/main.go insertr-cli/insertr 2>/dev/null || echo "   Missing CLI components"
+    @echo "\n🔌 Server files:"
+    @ls -la insertr-server/cmd insertr-server/insertr-server 2>/dev/null || echo "   Missing server components"
     @echo "\n🌐 Demo site:"
-    @ls -la demo-site/index.html demo-site/about.html 2>/dev/null || echo "   Missing demo files"
+    @ls -la demo-site/index.html demo-site/about.html 2>/dev/null || echo "   Missing demo files"
+    @echo ""
+    @echo "🚀 Development Commands:"
+    @echo "   just dev       - Full-stack development (recommended)"
+    @echo "   just demo-only - Demo site only (no persistence)"
+    @echo "   just server    - API server only (localhost:8080)" 
+    @echo ""
+    @echo "🔍 Check server: just server-health"