feat: parallel evaluation infrastructure (worktree pool, async subprocess, shared types) #259

Job	Run time
check-linked-issue	4s
determine-changes / detect	7s
coverage	7m 46s
type-check	23s
unit-tests (ubuntu-latest, 3.11)	7m 8s
unit-tests (ubuntu-latest, 3.14)	5m 37s
unit-tests (ubuntu-latest, 3.9)	8m 57s
unit-tests (ubuntu-latest, 3.13)	7m 37s
unit-tests (ubuntu-latest, 3.12)	6m 50s
prek / prek	35s
e2e-python (tracer-replay, end_to_end_test_tracer_replay.py, 10)	5m 52s
unit-tests (ubuntu-latest, 3.10)	7m 16s
unit-tests (windows-latest, 3.13)	10m 2s
e2e-python (init-optimization, end_to_end_test_init_optimization.py, 10)	3m 15s
e2e-python (async-optimization, end_to_end_test_async.py, 10)	7m 7s
e2e-python (bubble-sort-pytest-nogit, end_to_end_test_bubblesort_pytest.py, 70, true)	12m 0s
e2e-python (bubble-sort-unittest, end_to_end_test_bubblesort_unittest.py, 40)	12m 18s
e2e-python (coverage-e2e, end_to_end_test_coverage.py, black)	8m 1s
e2e-python (benchmark-bubble-sort, end_to_end_test_benchmark_sort.py, 5)	15m 5s
e2e-python (futurehouse-structure, end_to_end_test_futurehouse.py, 5)	3m 23s
e2e-python (topological-sort, end_to_end_test_topological_sort_worktree.py, 5)	2m 58s
e2e-java	0s
e2e-js	0s
required checks passed	5s
	2h 12m 26s

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