feat(kotlin-compose): design system + 33 components + gallery_kt + e2e android emulator + scaffolder fixes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

bash/functions/infra/android_screenshot.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# android_screenshot — Capture screen as PNG via adb exec-out screencap -p.
+
+android_screenshot() {
+    local SCRIPT_DIR
+    SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    # shellcheck source=bash/functions/infra/adb_wsl.sh
+    source "$SCRIPT_DIR/adb_wsl.sh" || return 1
+
+    # Resolve serial, consume --serial from args
+    adb_pick_serial "$@" || exit 3
+    local serial="$ADB_PICK_SERIAL"
+    set -- "${ADB_PICK_REST[@]}"
+
+    local output="${1:-}"
+    if [[ -z "$output" ]]; then
+        echo "android_screenshot: output_path is required." >&2
+        return 1
+    fi
+
+    # Ensure parent directory exists
+    mkdir -p "$(dirname "$output")"
+
+    # Capture screen
+    adb_s "$serial" exec-out screencap -p > "$output"
+
+    # Verify file created and non-empty
+    if [[ ! -f "$output" ]] || [[ ! -s "$output" ]]; then
+        rm -f "$output"
+        echo "android_screenshot: screencap produced empty or missing file." >&2
+        return 1
+    fi
+
+    local size
+    size=$(stat -c%s "$output" 2>/dev/null || stat -f%z "$output" 2>/dev/null)
+    echo "screenshot: $output ($size bytes) from $serial"
+}
+
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+    android_screenshot "$@"
+fi