tune: retune vision and gimbal angle PID, fix manual mode velocity hold

- Vision PID: increase Kp to 100, zero Ki/Kd, tighten CoefA/B
- Gimbal angle PID: reduce to P-only (Kp=1), lower IntegralLimit,
  remove derivative/output filters, unify MaxOut to 2000
- Manual mode: hold last velocity command on lost frames instead of
  stopping
- Debug mode: reset debug_updated flag on mode switch
- Remove stale .vscode settings copy

application/gimbal/gimbal.c

@@ -36,12 +36,11 @@ void GimbalInit()
             },
             .controller_param_init_config = {
                 .angle_PID = {
-                    .Kp = 30, .Ki = 80, .Kd = 0.2f,
-                    .IntegralLimit = 1000,
-                    .CoefA = 20, .CoefB = 10,
+                    .Kp = 1, .Ki = 0, .Kd = 0,
+                    .IntegralLimit = 45,
+                    .CoefA = 15, .CoefB = 5,
                     .Improve = PID_Trapezoid_Intergral | PID_Integral_Limit |
-                               PID_Derivative_On_Measurement | PID_ChangingIntegrationRate |
-                               PID_DerivativeFilter | PID_OutputFilter,
+                               PID_Derivative_On_Measurement | PID_ChangingIntegrationRate,
                     .MaxOut = 2000,
                 },
                 .other_angle_feedback_ptr = &gimbal_IMU_data->YawTotalAngle,
@@ -65,12 +64,12 @@ void GimbalInit()
             },
             .controller_param_init_config = {
                 .angle_PID = {
-                    .Kp = 20, .Ki = 50, .Kd = 0.1f,
-                    .IntegralLimit = 500,
+                    .Kp = 1, .Ki = 0, .Kd = 0,
+                    .IntegralLimit = 45,
                     .CoefA = 15, .CoefB = 5,
                     .Improve = PID_Trapezoid_Intergral | PID_Integral_Limit |
                                PID_Derivative_On_Measurement | PID_ChangingIntegrationRate,
-                    .MaxOut = 1000,
+                    .MaxOut = 2000,
                 },
                 .other_angle_feedback_ptr = &gimbal_IMU_data->Pitch,
                 .other_speed_feedback_ptr = &gimbal_IMU_data->Gyro[0],