Fix ruff f-string-missing-placeholders in render_thin

generate.py

@@ -147,7 +147,7 @@ def render_thin(repo: dict) -> str:
 
     doctor_block = ""
     if doctor:
-        doctor_block = f"""  # ENFORCEMENT gate (cluster #193): run parity-lib's pipeline-doctor --strict
+        doctor_block = """  # ENFORCEMENT gate (cluster #193): run parity-lib's pipeline-doctor --strict
   # against THIS repo BEFORE publishing. Read-only, no registry contact, no
   # token. The doctor's non-zero exit fails the pipeline on any parity-contract
   # violation (or, in --strict, any warning), so a drifted repo never publishes.
@@ -161,7 +161,10 @@ def render_thin(repo: dict) -> str:
 
     env_lines = []
     if gitea_clone_token:
-        env_lines += ["      GITEA_CLONE_TOKEN:", "        from_secret: gitea_clone_token"]
+        env_lines += [
+            "      GITEA_CLONE_TOKEN:",
+            "        from_secret: gitea_clone_token",
+        ]
     if token_direct:
         env_lines += ["      REGISTRY_TOKEN:", "        from_secret: registry_token"]
     else: