fix(paths): module-level default init so subprocess imports don't crash

src/paths.py

@@ -68,6 +68,39 @@ _PATHS_CONFIG: Optional[PathsConfig] = None
 _PATHS_LOCK = threading.RLock()
 
 
+def _default_paths_config() -> PathsConfig:
+ """Build the default PathsConfig (no [paths] overrides, just defaults).
+ Called once at module load to ensure _PATHS_CONFIG is never None for
+ callers that don't explicitly initialize (e.g., subprocess imports).
+ [C: src/paths.py:initialize_paths, src/paths.py:_module_init_default]"""
+ root_dir = Path(__file__).resolve().parent.parent
+ config_path = root_dir / "config.toml"
+ cfg = PathsConfig(
+  config_path        = config_path,
+  presets            = root_dir / "presets.toml",
+  tool_presets       = root_dir / "tool_presets.toml",
+  personas           = root_dir / "personas.toml",
+  themes             = root_dir / "themes",
+  workspace_profiles = root_dir / "workspace_profiles.toml",
+  credentials        = root_dir / "credentials.toml",
+  logs_dir           = root_dir / "logs" / "sessions",
+  scripts_dir        = root_dir / "scripts" / "generated",
+ )
+ return cfg
+
+
+def _module_init_default() -> None:
+ """Initialize _PATHS_CONFIG with defaults at module load.
+ Idempotent. Subsequent calls to initialize_paths(<custom>) override this.
+ [C: src/paths.py:initialize_paths, src/paths.py:reset_paths]"""
+ global _PATHS_CONFIG
+ if _PATHS_CONFIG is None:
+  _PATHS_CONFIG = _default_paths_config()
+
+
+_module_init_default()
+
+
 def _resolve_path(env_var: str, config_key: str, default: Path, config_path: Path) -> Path:
  """Internal: resolve one path from env var -> config [paths] -> default.
  Called only from initialize_paths(). Not thread-safe; caller holds lock."""