server/install.sh was broken after moving into server/: SCRIPT_DIR now
resolves to the server/ subdirectory, so requirements path, log dir, and
systemd WorkingDirectory all pointed at wrong locations. Introduce REPO_DIR
(parent of SCRIPT_DIR) and use it throughout.
client/install.sh creates a venv at client/.venv, installs
client/requirements.txt, and writes a client/run.sh launcher.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
