Enhance LLM and SwarmUI integration with improved configuration options

- Updated `env.example` and `gpu-rent.vars.example` to include new variables for LLM runtime and SwarmUI options.
- Refactored CLI commands to support interactive selection of LLM runtime and workload type (SwarmUI, LLM, or both).
- Improved access link generation to handle cases where SwarmUI is disabled, providing clearer user feedback.
- Enhanced provisioning logic to conditionally bootstrap SwarmUI based on user configuration, allowing for LLM-only setups.
- Updated documentation across multiple files to reflect changes in LLM integration, CLI usage, and configuration management.

src/gpu_rent/bootstrap.py

@@ -24,14 +24,18 @@ def run_bootstrap(
     update: bool = True,
     light: bool = False,
 ) -> None:
-    if light:
+    skip_swarm = not bool(getattr(cfg, "enable_swarmui", True))
+    if skip_swarm:
+        log("bootstrap llm-only (data disk, без SwarmUI)")
+    elif light:
         log("bootstrap SwarmUI (light: без apt)")
     else:
         log("bootstrap SwarmUI на VM (идемпотентно, без Docker)")
-    if update:
-        log("git update: SwarmUI on")
-    else:
-        log("git update: SwarmUI off (--no-update)")
+    if not skip_swarm:
+        if update:
+            log("git update: SwarmUI on")
+        else:
+            log("git update: SwarmUI off (--no-update)")
     script = bootstrap_script()
     out = run_script_sudo(
         cfg,
@@ -43,9 +47,13 @@ def run_bootstrap(
             "SWARM_USER": cfg.ssh_user,
             "GPU_RENT_UPDATE_GIT": "1" if update else "0",
             "GPU_RENT_BOOTSTRAP_LIGHT": "1" if light else "0",
+            "GPU_RENT_SKIP_SWARMUI": "1" if skip_swarm else "0",
         },
         log=log,
     )
     if "bootstrap ok" not in out:
         raise CloudError(f"bootstrap не подтвердил успех:\n{out[-800:]}")
-    log("диски и systemd unit готовы; дальше seed, потом start swarmui")
+    if skip_swarm:
+        log("data disk готов — дальше LLM")
+    else:
+        log("диски и systemd unit готовы; дальше seed, потом start swarmui")