fix(init-repo): create $HOME before git config on fresh volumes

git config --global writes to $HOME/.gitconfig, but on a fresh PVC
$HOME (/config/userdata) doesn't exist yet. This causes the script to
fail with "could not lock config file" and exit due to set -e, leaving
the container in a crash loop with a black screen.

Move the mkdir -p $HOME + chown to the top of the script so it runs
before any git operations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/init-repo.sh

@@ -4,6 +4,13 @@ set -e
 
 echo "=== Repository Initialization ==="
 
+# Ensure home directory exists on the PVC before any git operations
+# (git config --global writes to $HOME/.gitconfig, which fails on a fresh volume)
+RUN_UID="${USER_ID:-1000}"
+RUN_GID="${GROUP_ID:-1000}"
+mkdir -p "$HOME"
+chown "$RUN_UID:$RUN_GID" "$HOME"
+
 # Set up basic git configuration
 echo "Configuring git user settings..."
 # Use environment variables if provided, otherwise use defaults
@@ -142,10 +149,6 @@ if [ ${#REPOS[@]} -eq 0 ]; then
     chown -R "$RUN_UID:$RUN_GID" "$WORKSPACE_DIR"
 fi
 
-# Ensure home directory exists on the PVC (may be absent on a fresh volume)
-mkdir -p "$HOME"
-chown "$RUN_UID:$RUN_GID" "$HOME"
-
 # Seed Claude Code settings if missing (disable auto-updater in Docker)
 if [ ! -f "$HOME/.claude/settings.json" ]; then
     mkdir -p "$HOME/.claude"