LePika v0.1.2

Fixed

• A bundled ChatML template missing from a damaged install now raises a
  FriendlyError instead of a bare FileNotFoundError. The template repair runs
  after a pull has already succeeded, so the traceback would have been the only
  thing the user saw go wrong. (#15)
• lepika down now stops an OpenWebUI that lepika up adopted rather than
  started. up returns early when the port already answers, recording no pid, and
  down had only that pid file to go on — so it reported "Nothing was running"
  while the UI kept serving and lepika status kept showing it up. It now falls
  back to the process list, the same command-line evidence a hung pid is already
  judged by. (#17)
• lepika update no longer reports "Ollama installation failed" after the engine
  upgraded fine. The official install script runs under set -e, so a machine
  whose systemd is wedged aborts it in the optional service setup — the very setup
  LePika undoes on the next line — long after the binary landed. The engine on
  PATH now decides, and the unit the aborted script left enabled is disabled as
  usual. (#18)