feat: Add App abstraction class to standardize API and add hooks

[Tw1ZZLER]

This PR adds a new abstract class App that other apps such as RequestApp and PeriodicApp now inherit from. It includes 3 new abstract methods that are required to be meaningfully implemented in the subclasses of App. These are get_memory(), get_reservation_result(), and get_other_reservation().

[github-code-quality]

Code Coverage Overview

Languages: Python

Python / code-coverage/pytest

The overall coverage in the app-abstraction branch remains at 83%, unchanged from the master branch.

Show a code coverage summary of the most impacted files.

File	master 021ef42	app-abstraction 0e8016b	+/-
sequence/entang...n/bbpssw_bds.py	48%	48%	0%
sequence/app/request_app.py	99%	100%	+1%
sequence/utils/.../event_types.py	0%	81%	+81%
sequence/app/app.py	0%	81%	+81%
sequence/utils/...ics/registry.py	0%	87%	+87%
sequence/utils/...ics/__init__.py	0%	97%	+97%
sequence/utils/...metric_types.py	0%	98%	+98%
tests/utils/test_metrics.py	0%	100%	+100%
sequence/utils/...rics/storage.py	0%	100%	+100%
sequence/utils/...ics/builtins.py	0%	100%	+100%

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_{Updated July 17, 2026 18:06 UTC
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[Tw1ZZLER]

Removed get_throughput(). If the user wants throughput from the app they should use THROUGHPUT_METRIC. Ideally get_throughput() should be deprecated

[Tw1ZZLER]

Added warning that get_throughput() is deprecated and THROUGHPUT_METRIC should be used instead.

should be ready for merge 🙂