fix: mount PVC at /config to persist Chrome and app state across restarts

The jlesage/baseimage-gui sets XDG_CONFIG_HOME=/config/xdg/config at
runtime, so Chrome was writing its profile to /config/xdg/config/google-chrome
which lived on ephemeral storage. This caused Chrome to open as a fresh
install on every pod restart.

Changes:
- Mount the PVC at /config instead of /home (aligns with baseimage-gui convention)
- Move user home directory to /config/userdata (on the PVC)
- Add explicit --user-data-dir for Chrome pointing to PVC path
- Clean up Chrome crash lock files and patch Preferences on startup
  to prevent session/cookie loss after unclean pod shutdown
- Update all scripts (sshd, init-repo, cont-init) to use new paths
- Remove unnecessary cont-init-home.sh

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

scripts/init-repo.sh

@@ -25,8 +25,8 @@ else
         # Configure git to use token if provided
         if [ -n "$GITHUB_TOKEN" ]; then
             git config credential.helper store
-            echo "https://oauth2:${GITHUB_TOKEN}@github.com" > /home/.git-credentials
-            chmod 600 /home/.git-credentials
+            echo "https://oauth2:${GITHUB_TOKEN}@github.com" > /config/userdata/.git-credentials
+            chmod 600 /config/userdata/.git-credentials
         fi
 
         git pull || echo "Pull failed, continuing anyway..."
@@ -42,8 +42,8 @@ else
 
             # Configure credentials for future use
             git config --global credential.helper store
-            echo "https://oauth2:${GITHUB_TOKEN}@github.com" > /home/.git-credentials
-            chmod 600 /home/.git-credentials
+            echo "https://oauth2:${GITHUB_TOKEN}@github.com" > /config/userdata/.git-credentials
+            chmod 600 /config/userdata/.git-credentials
         else
             git clone "$GITHUB_REPO" "$WORKSPACE_DIR"
         fi