feat: Implement keyring-based OTP secret storage with migration from config.json and allow launcher command configuration.

installer.sh

@@ -142,25 +142,10 @@ if [ -f "$CONFIG_FILE" ]; then
 fi
 
 if [ "$SETUP_CONFIG" = true ]; then
-    echo "We will now set up the configuration file."
-    echo "You will need your generic TOTP secret (base32 format) OR a full otpauth:// URL."
-    read -p "Enter your TOTP Secret or URL: " SECRET
-
-    if [ -z "$SECRET" ]; then
-        echo "Error: Secret cannot be empty."
-        # We can continue to install files even if config fails? 
-        # Or should we exit? Probably exit or just warn. 
-        # Let's exit for safety if they intended to set it up but failed.
-        exit 1
-    fi
-
-    cat > "$CONFIG_FILE" <<EOF
-{
-    "secret": "$SECRET"
-}
-EOF
-    echo "Configuration created successfully at: $CONFIG_FILE"
-
+    echo "Creating empty configuration file..."
+    echo "{}" > "$CONFIG_FILE"
+    echo "Configuration created at: $CONFIG_FILE"
+    echo "You will be prompted for your OTP secret when you run the wrapper for the first time."
 fi
 
 echo ""