style: ruff format cli.py (#1244)

CI requires ruff format --check on the whole touched file. Pre-existing drift, no logic change.

mempalace/cli.py

@@ -310,8 +310,7 @@ def cmd_init(args):
                 )
         except LLMError as e:
             print(
-                f"  LLM init failed ({e}). "
-                f"Running heuristics-only — pass --no-llm to silence this."
+                f"  LLM init failed ({e}). Running heuristics-only — pass --no-llm to silence this."
             )
 
     # Pass 0: detect whether the corpus is AI-dialogue. Writes