feat: add logging for IPC commands, responses, and errors

Co-authored-by: aider (gemini/gemini-3.1-pro-preview) <aider@aider.chat>

main.py

@@ -56,7 +56,8 @@ def playback_thread(file_path, state):
                 frame = next(iterator)
             except StopIteration:
                 break
-            except av.AVError:
+            except av.AVError as e:
+                logging.error(f"AVError during decode: {e}")
                 continue
                 
             with state.lock:
@@ -127,11 +128,14 @@ def handle_ipc_client(conn, state):
                     else:
                         resp["error"] = "unknown command"
                         
+                    logging.info(f"IPC Command: {cmd} -> Response: {resp}")
                     conn.sendall((json.dumps(resp) + '\n').encode('utf-8'))
                 except Exception as e:
+                    logging.error(f"IPC Error processing line '{line}': {e}")
                     err_resp = {"error": str(e)}
                     conn.sendall((json.dumps(err_resp) + '\n').encode('utf-8'))
-        except Exception:
+        except Exception as e:
+            logging.error(f"IPC Client connection error: {e}")
             break
     conn.close()
 
@@ -152,7 +156,8 @@ def ipc_server_thread(socket_path, state):
             t.start()
         except socket.timeout:
             continue
-        except Exception:
+        except Exception as e:
+            logging.error(f"IPC Server error: {e}")
             break
             
     server.close()