force rewrited code

justfile

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+# Configuration
+set shell := ["bash", "-c"]
+
+export VIRTUAL_ENV := ""
+backend_dir := "backend/app"
+frontend_dir := "frontend"
+venv_bin := backend_dir + "/.venv/bin"
+
+# ============================================================================
+# Default: Show help
+# ============================================================================
+[doc("Show available recipes")]
+default:
+    @just --list
+
+# ============================================================================
+# Setup: Initialize dependencies
+# ============================================================================
+
+[doc("Install all dependencies")]
+install: install-backend install-frontend
+
+[doc("Install backend dependencies with uv")]
+install-backend:
+    cd {{backend_dir}} && uv sync
+
+[doc("Install portable Node.js and frontend dependencies")]
+install-frontend: install-backend
+    @echo "Ensuring Node.js is available..."
+    @if ! command -v npm >/dev/null 2>&1 && [ ! -f "{{venv_bin}}/npm" ]; then \
+        echo "Installing portable Node.js inside Python venv..."; \
+        cd {{backend_dir}} && uv pip install nodeenv && uv run nodeenv -p; \
+    fi
+    @echo "Installing frontend dependencies..."
+    export PATH="$PWD/{{venv_bin}}:$PATH" && cd {{frontend_dir}} && npm install
+
+# ============================================================================
+# Development: Run services
+# ============================================================================
+
+[doc("Run backend server")]
+run-backend: install-backend
+    cd {{backend_dir}} && uv run python3 main.py
+
+[doc("Run frontend development server")]
+run-frontend: install-frontend
+    export PATH="$PWD/{{venv_bin}}:$PATH" && cd {{frontend_dir}} && npm start
+
+[doc("Run both services (Backend + GUI)")]
+dev: install
+    @echo "Starting backend and frontend..."
+    export PATH="$PWD/{{venv_bin}}:$PATH"; \
+    (cd {{backend_dir}} && uv run python3 main.py) & \
+    BACKEND_PID=$$!; \
+    sleep 2; \
+    (cd {{frontend_dir}} && npm start) & \
+    FRONTEND_PID=$$!; \
+    trap "kill $$BACKEND_PID $$FRONTEND_PID 2>/dev/null" EXIT INT TERM; \
+    wait
+
+# ============================================================================
+# Build & Clean
+# ============================================================================
+
+[doc("Build frontend")]
+build-frontend: install-frontend
+    export PATH="$PWD/{{venv_bin}}:$PATH" && cd {{frontend_dir}} && npm run build
+
+[doc("Clean build artifacts and all dependencies")]
+clean-all:
+    rm -rf {{backend_dir}}/.pytest_cache
+    rm -rf {{backend_dir}}/__pycache__
+    rm -rf {{backend_dir}}/src/__pycache__
+    rm -rf {{frontend_dir}}/build
+    rm -rf {{backend_dir}}/.venv
+    rm -rf {{frontend_dir}}/node_modules
+    find . -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null || true
+
+[doc("Check if tools are available")]
+check:
+    @echo "Checking prerequisites..."
+    @command -v uv >/dev/null 2>&1 && echo "[OK] uv" || echo "[MISSING] uv"
+    @if command -v node >/dev/null 2>&1 || [ -f "{{venv_bin}}/node" ]; then echo "[OK] Node.js"; else echo "[MISSING] Node.js"; fi
+    @if command -v npm >/dev/null 2>&1 || [ -f "{{venv_bin}}/npm" ]; then echo "[OK] npm"; else echo "[MISSING] npm"; fi
+    @command -v python3 >/dev/null 2>&1 && echo "[OK] python3" || echo "[MISSING] python3"