style: 代码格式优化与清理

- 删除多余的空行 (loop.go, loop_test.go)
- 格式化长字符串参数，提高可读性 (cmd_mode.go)
- 修复注释对齐 (runtime.go)

pkg/agent/loop.go

@@ -1999,7 +1999,6 @@ func (al *AgentLoop) buildCommandsRuntime(agent *AgentInstance, opts *processOpt
 			agent.Model = value
 			return oldModel, nil
 		}
-
 	}
 	return rt
 }

pkg/agent/loop_test.go

@@ -871,7 +871,6 @@ func TestHandleCdCommand_SymlinkEscape(t *testing.T) {
 	}
 }
 
-
 func TestTargetReasoningChannelID_AllChannels(t *testing.T) {
 	tmpDir, err := os.MkdirTemp("", "agent-test-*")
 	if err != nil {

pkg/commands/cmd_mode.go

@@ -51,7 +51,9 @@ func hipicoCmnd() Definition {
 				}
 			}
 			if msg == "" {
-				return req.Reply("👋 Hi~ What can I help you with?\n\n💡 Examples:\n  /hipico what files are in the working directory?\n  /hipico what time is it now?\n  /hipico what's the progress on the previous task?")
+				return req.Reply(
+					"👋 Hi~ What can I help you with?\n\n💡 Examples:\n  /hipico what files are in the working directory?\n  /hipico what time is it now?\n  /hipico what's the progress on the previous task?",
+				)
 			}
 			reply, err := rt.RunOneShot(ctx, msg)
 			if err != nil {