Initial commit: Pixel AI comic/video creation platform

- FastAPI backend with SQLModel, Alembic migrations, AgentScope agents
- Next.js 15 frontend with React 19, Tailwind, Zustand, React Flow
- Multi-provider AI system (DashScope, Kling, MiniMax, Volcengine, OpenAI, etc.)
- All HTTP clients migrated from sync requests to async httpx
- Admin-managed API keys via environment variables
- SSRF vulnerability fixed in ensure_url()

stop.sh

@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+print_info() {
+    echo -e "${BLUE}ℹ${NC} $1"
+}
+
+print_success() {
+    echo -e "${GREEN}✓${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}⚠${NC} $1"
+}
+
+echo ""
+echo "╔═══════════════════════════════════════════════════════╗"
+echo "║         Stopping Pixel Development Services           ║"
+echo "╚═══════════════════════════════════════════════════════╝"
+echo ""
+
+# Function to kill processes on port
+kill_port() {
+    local port=$1
+    local name=$2
+    
+    if command -v lsof >/dev/null 2>&1; then
+        if lsof -i :$port >/dev/null 2>&1; then
+            print_info "Stopping $name on port $port..."
+            local pids=$(lsof -ti :$port)
+            for pid in $pids; do
+                kill -15 $pid 2>/dev/null
+            done
+            sleep 1
+            
+            # Force kill if still running
+            if lsof -i :$port >/dev/null 2>&1; then
+                print_warning "Force killing $name..."
+                local pids=$(lsof -ti :$port)
+                for pid in $pids; do
+                    kill -9 $pid 2>/dev/null
+                done
+            fi
+            
+            print_success "$name stopped"
+        else
+            print_info "$name not running on port $port"
+        fi
+    else
+        print_warning "lsof not available, cannot check ports"
+    fi
+}
+
+# Stop backend (port 8000)
+kill_port 8000 "Backend"
+
+# Stop frontend (port 3000)
+kill_port 3000 "Frontend"
+
+# Kill any remaining uvicorn or npm processes
+print_info "Cleaning up remaining processes..."
+
+# Kill uvicorn processes
+pkill -f "uvicorn src.main:app" 2>/dev/null
+
+# Kill npm dev processes
+pkill -f "npm run dev" 2>/dev/null
+pkill -f "next dev" 2>/dev/null
+
+sleep 1
+
+echo ""
+print_success "All services stopped"
+echo ""