WIP/DUBIOUS: docker build script + android_logger migration (build broken)

Docker-based build pipeline (scripts/build-android-docker.sh) replacing
hcloud VMs — NOT verified working yet. Also includes android_logger
migration that may have introduced build issues. All changes after
264ef9c are suspect.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/build-android-cloud.sh

@@ -23,7 +23,7 @@ set -euo pipefail
 SSH_KEY_NAME="wz"
 SSH_KEY_PATH="/Users/manwe/CascadeProjects/wzp"
 SERVER_TYPE="${WZP_SERVER_TYPE:-cx33}"
-IMAGE="ubuntu-24.04"
+IMAGE="debian-12"
 SERVER_NAME="wzp-android-builder"
 REMOTE_USER="root"
 OUTPUT_DIR="target/android-apk"