fix: use PyYAML for config parsing to read nested values correctly

entry.py

@@ -85,31 +85,30 @@ def _load_env() -> dict[str, str]:
 
 
 def _load_config() -> dict:
-    """Read config.yaml into dict (simple parser)."""
-    cfg: dict = {}
+    """Read config.yaml into dict using PyYAML."""
     try:
+        import yaml
         with open(CONFIG_FILE) as f:
-            current_section = None
-            for line in f:
-                stripped = line.strip()
-                if not stripped or stripped.startswith("#"):
-                    continue
-                # Check for section headers
-                if ":" in stripped and not line.startswith(" "):
-                    k, _, v = stripped.partition(":")
-                    k = k.strip()
-                    v = v.strip()
-                    if v:
-                        if current_section:
-                            cfg[current_section + "." + k] = v
-                        else:
+            return yaml.safe_load(f) or {}
+    except ImportError:
+        # Fallback: simple flat parser (no nested support)
+        cfg: dict = {}
+        try:
+            with open(CONFIG_FILE) as f:
+                for line in f:
+                    stripped = line.strip()
+                    if not stripped or stripped.startswith("#"):
+                        continue
+                    if ":" in stripped and not line.startswith(" "):
+                        k, _, v = stripped.partition(":")
+                        k, v = k.strip(), v.strip()
+                        if v:
                             cfg[k] = v
-                # Check for nested section
-                if stripped.endswith(":") and not stripped.startswith(" ") and ":" not in stripped[:-1]:
-                    current_section = stripped[:-1].strip()
+        except FileNotFoundError:
+            pass
+        return cfg
     except FileNotFoundError:
-        pass
-    return cfg
+        return {}
 
 
 def _get_sessions_count() -> int: