Add more integration tests

tests/e2e/run-e2e.sh

@@ -1,17 +1,41 @@
 #!/bin/bash
 set -euo pipefail
 
-# E2E integration test: runs the full manual-mode patching flow in a browser
-# and verifies SHA1 checksums of the patched binaries.
+# E2E integration test: runs the full UI flows in a browser
+# and verifies correct behavior for NickelMenu and custom patches.
 #
-# Usage: ./run-e2e.sh
+# Usage: ./run-e2e.sh [--headed] [-- <extra playwright args>]
+#
+# Options:
+#   --headed    Run with a visible browser window
 #
 # Prerequisites:
 #   - kobopatch.wasm built (run kobopatch-wasm/build.sh first)
 #   - Firmware zip cached at kobopatch-wasm/testdata/ (downloaded automatically)
+#   - NickelMenu assets in web/public/nickelmenu/ (set up automatically)
 
 cd "$(dirname "$0")"
 
+PLAYWRIGHT_ARGS=("--reporter=list")
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --headed)
+            PLAYWRIGHT_ARGS+=("--headed")
+            shift
+            ;;
+        --)
+            shift
+            PLAYWRIGHT_ARGS+=("$@")
+            break
+            ;;
+        *)
+            PLAYWRIGHT_ARGS+=("$1")
+            shift
+            ;;
+    esac
+done
+
 FIRMWARE_VERSION="4.45.23646"
 FIRMWARE_URL="https://ereaderfiles.kobo.com/firmwares/kobo13/Mar2026/kobo-update-${FIRMWARE_VERSION}.zip"
 FIRMWARE_DIR="../../kobopatch-wasm/testdata"
@@ -23,6 +47,13 @@ if [ ! -f "../../web/public/wasm/kobopatch.wasm" ]; then
     exit 1
 fi
 
+# Set up NickelMenu assets if not present.
+NM_DIR="../../web/public/nickelmenu"
+if [ ! -f "$NM_DIR/NickelMenu.zip" ] || [ ! -f "$NM_DIR/kobo-config.zip" ]; then
+    echo "Setting up NickelMenu assets..."
+    ../../nickelmenu/setup.sh
+fi
+
 # Download firmware if not cached.
 if [ ! -f "$FIRMWARE_FILE" ]; then
     echo "Downloading firmware ${FIRMWARE_VERSION} (~150MB)..."
@@ -43,7 +74,7 @@ fi
 npm install --silent
 npx playwright install chromium --with-deps 2>/dev/null || npx playwright install chromium
 
-# Run the test.
-echo "Running E2E integration test..."
+# Run the tests.
+echo "Running E2E integration tests..."
 FIRMWARE_ZIP="$(cd ../.. && pwd)/kobopatch-wasm/testdata/kobo-update-${FIRMWARE_VERSION}.zip" \
-    npx playwright test --reporter=list
+    npx playwright test "${PLAYWRIGHT_ARGS[@]}"