I'd suggest your non-exercise activity by itself is middle of Lightly Active range.
Your exercise by itself is upper end of Moderately Active.
You put the 2 together you are Very Active easily.

Unless you lost a lot of muscle mass undereating, and metabolism is just slower because of that, yes, you did suppress your daily burn. Even if you were doing some strength training, undereat enough and you will lose muscle mass that is being used, the least.

With a BMR of 1390 now weighing less, and you were eating mainly 1400 to maybe 1500 when it was higher - I hope you sense a problem there if you had that schedule in the past too.

You didn't damage your metabolism, your body did exactly what it needed to for the stress you put it under - it slowed down, became more metabolically efficient, burning less than it could.

And since you are bumping up in calories, you have no idea of the extent it could go, because it's likely still running slower than it could.

Knowing your Katch BMR based on bodyfat% would be tad more accurate, but based on info given.

HRM calorie burn info isn't going to be valid except for the cardio you mentioned, resistance training and circuit training are wrong exercise for the calorie burn formula.

How do you do resistance type training one day hard, followed by circuit type workouts the next day? That sounds like potentially the same muscles being used, which means you really aren't going as hard as you could if muscles were rested.
Unrecovered exercise turns workouts in to much less than they could be - which means they no longer cause any improvement because you aren't overloading the muscles with weight, but just being tired.
Since recovery takes place 24-36 hrs later, and is longer in a diet, of which you are in an extreme one, I really doubt you are getting nearly as much from your workouts as you could be.

Since you do strength training, you'll get this analogy. Which workout could you push more weight on?
A - do 10 reps, rest 5 seconds, 10 reps, 5 sec rest, 10 reps.
B - do 10 reps, rest 90 seconds, 10 reps, 90 sec rest, 10 reps.

Now, as far as gaining strength or asking the body to make improvements related to strength training and not cardio, which workout is going to cause that effect?
Of course B.

That same principle applies day after day. Just something to think about, because along with undereating by a decent amount, that makes workouts much less effect, especially with little to no recovery time. Each workout turns into maintenance level, not asking the body to improve at all, just burning some calories.

For day 1 lifting, if you do sets and rests of 1-3 min, and weight that is heavy for you to almost failure on last reps (so not circuit training with cardio aspect), the MFP entry of Strength Training is actually very good estimate. Indeed, much lower than equal time cardio, but it still counts.
For your other day 2 stuff, Calisthenics would be correct it sounds like, since even circuit training is not that high rep, and does have some rest time.
The nice thing with TDEE method if you guess the TDEE right, is it doesn't matter what individual workout was.

Many can get high burns because they weight more, or more intense. Or they are dishonest with themselves regarding intensity or time. I've seen many say 60 min spin bike session. But first 5-10 min is easy warmup, last 10-15 min is easy cooldown and stretching. That whole time was not the vigorous spin bike class, and shouldn't be counted as such.
Same with lifting, start time with first lift, end with last lift, rests are expected for Strength Training entry. But not cardio before and after, not extra standing around time talking or waiting for equipment, ect.
What I did to simplify was take typical workout, and when gym was pretty empty and I had no problems with waiting for stuff, timed it. That was the time I used for that workout going forward, so even if I talked or waited, didn't matter, I knew how long it really took.
I could easily burn more than 1000 cal/hr in cardio, because very aerobically fit. But that was with just 10 lbs more. After losing that, my fitness didn't have the ability to increase enough to compensate to go harder, so now that is the rare short workout to burn that much per hr. Or like race I just did, which could never be done in training that often.

Swimming is good entry too, if honest about your pace. I swim badly, so though slow, I burn at the higher speed entry. Some benefit to being inefficient, though I'd rather be faster.

When you increase calories, increase by 100 daily for a week or 2 at a time.
That's a great way to know how depleted in carb stores you are, which store with water.
If eating a mere 100 extra daily causes 1-2 lb gain in 1-2 weeks, you know you are in extreme diet, and just gained water weight.
Because for that to be fat gain, you'd have to be eating 100 over maintenance for 35 days to slowly gain 1 lb, if your body didn't even speed up. And with lifting, not even all fat.

And I think you'd be shocked how much your performance goes up if you recalc your TDEE for more honest Very Active, no deficit, and slowly make your way up there.
Let your body unstress, then take that 15% deficit for the last 30-35 lbs.

The nice thing with improved fitness, otherwise qualified as VO2max, is that can go up, which means your HR will go down for same level of effort if you weigh the same, and you burn the same calories.

Normally, even if weight stays the same, you get more fit and can go harder with same HR, and actually burn more calories.
But that is where some HRM's will fail you, they see same weight stat, same avgHR reached, not aware the VO2max or effort or intensity went up, and assign the same calorie burn. And that's not true at all.

You aren't at that point anymore, because your fitness improvements will be harder to come by now, and more related to moving less weight around.
But normally you can improve fitness level much faster than you can lose weight, in fact increased weight makes it easier.