fix: resolve core utility lint errors

src/app/core/utils/deps.py

@@ -28,7 +28,7 @@ def get_yt_dlp_version() -> str | None:
 
         # yt-dlp exposes version in different places depending on install
         return getattr(yt_dlp, "__version__", None) or getattr(getattr(yt_dlp, "version", None), "__version__", None)
-    except Exception:
+    except (ImportError, AttributeError, TypeError):
         return None
 
 
@@ -78,7 +78,7 @@ def ensure_ffmpeg_available(ffmpeg_hint: str | None) -> tuple[str, str]:
     """
     ffmpeg_exe = "ffmpeg.exe" if sys.platform.startswith("win") else "ffmpeg"
 
-    ffmpeg_path, ffmpeg_dir = _resolve_tool_paths(ffmpeg_hint, ffmpeg_exe)
+    ffmpeg_path, _ = _resolve_tool_paths(ffmpeg_hint, ffmpeg_exe)
     if not ffmpeg_path:
         raise DependencyError("ffmpeg not found. Install ffmpeg or set 'ffmpeg_path' in config.")
 

src/app/core/utils/version.py

@@ -17,9 +17,11 @@ def _read_text(path: Path) -> str | None:
         if path.exists():
             text = path.read_text(encoding="utf-8").strip()
             return text or None
-    except Exception:
-        pass
+    except (OSError, UnicodeError):
+        return None
     return None
+
+
 def get_app_version() -> str:
     """
     Returns the packaged app version.

src/app/core/utils/yt.py

@@ -10,5 +10,5 @@ def extract_playlist_id(url: str) -> str | None:
         if "list" in qs and qs.get("list"):
             return qs.get("list", [None])[0]
         return None
-    except Exception:
+    except (TypeError, ValueError):
         return None