build(elixir): add dev container

.devcontainer/setup.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Setup script for Elixir Phoenix development environment
+
+echo "🚀 Setting up Elixir Phoenix development environment..."
+
+# Install dependencies
+echo "📦 Installing Elixir dependencies..."
+mix deps.get
+
+# Install Node.js dependencies for assets
+echo "📦 Installing Node.js dependencies..."
+cd assets && npm install && cd ..
+
+# Create and migrate database
+echo "🗃️ Setting up database..."
+mix ecto.create
+mix ecto.migrate
+
+# Run seeds if they exist
+if [ -f priv/repo/seeds.exs ]; then
+    echo "🌱 Running database seeds..."
+    mix run priv/repo/seeds.exs
+fi
+
+# Compile the project
+echo "🔨 Compiling project..."
+mix compile
+
+echo "✅ Development environment setup complete!"
+echo ""
+echo "🎯 Quick start commands:"
+echo "  mix phx.server         - Start the Phoenix server"
+echo "  mix test               - Run tests"
+echo "  mix deps.get           - Install dependencies"
+echo "  mix ecto.migrate       - Run database migrations"
+echo "  mix ecto.reset         - Reset database"
+echo ""
+echo "🌐 Phoenix server will be available at http://localhost:4000"