Enhance CLI options and idle-killer functionality

- Added a `--update` option to the `up` command in the CLI for forced updates during warm ACTIVE states.
- Improved the idle-killer logic with new functions to check for reusable credentials and refresh settings on existing remote credentials.
- Enhanced the `seed_civitai` function to implement caching for model jobs, optimizing the provisioning process.
- Updated the installation script for Ollama to prevent unnecessary restarts when the service configuration has not changed.
- Added diagnostics for model job caching and improved error handling in various functions.

src/gpu_rent/session.py

@@ -315,6 +315,15 @@ def cmd_up(
             state.server_name = getattr(existing, "name", None)
             if status == "ACTIVE":
                 if state.bootstrapped and state.floating_ip:
+                    # Warm re-up: skip git pull/stop cascade unless --update.
+                    if update is None:
+                        do_update = False
+                        log(
+                            "warm ACTIVE — без git pull SwarmUI/extensions "
+                            "(нужен свежий: --update)"
+                        )
+                    else:
+                        do_update = update
                     log("сервер уже ACTIVE — второй GPU не создаём")
                     state.phase = "bootstrapping"
                     save_state(state)