Clean up tool output formatting

- Shell: "✅ Command executed successfully" → "⚡️ ran successfully"
- Write file: Remove ✏️ emoji, use plain "wrote N lines | M chars"

scripts/install.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+# Build and install g3 and studio to ~/.local/bin
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+INSTALL_DIR="$HOME/.local/bin"
+mkdir -p "$INSTALL_DIR"
+
+echo "Building g3 and studio (release)..."
+cargo build --release
+
+echo "Installing to $INSTALL_DIR..."
+cp target/release/g3 "$INSTALL_DIR/"
+cp target/release/studio "$INSTALL_DIR/g3-studio"
+cp target/release/libVisionBridge.dylib "$INSTALL_DIR/"
+
+# Create symlink to override Android Studio's 'studio' command
+# Remove existing symlink if present, but don't remove if it's a different file
+if [ -L "$INSTALL_DIR/studio" ]; then
+    rm "$INSTALL_DIR/studio"
+fi
+ln -s "$INSTALL_DIR/g3-studio" "$INSTALL_DIR/studio"
+
+echo "Done! Installed:"
+echo "  $INSTALL_DIR/g3"
+echo "  $INSTALL_DIR/g3-studio"
+echo "  $INSTALL_DIR/studio -> g3-studio"
+echo "  $INSTALL_DIR/libVisionBridge.dylib"
+
+# Check if ~/.local/bin is in PATH
+if [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then
+    echo ""
+    echo "⚠️  $INSTALL_DIR is not in your PATH"
+    echo "   Add this to your shell rc file:"
+    echo "   export PATH=\"\$HOME/.local/bin:\$PATH\""
+fi