Sub-track 2D: 2 violations cleared (the 3 remaining sloppy.py violations are src.app_controller and src.gui_2 imports, addressed in sub-tracks 2E and 2F).
src.startup_profiler: 5 top-level imports, all stdlib (time, sys, contextlib, dataclasses, typing). Lean.
src.api_hooks: After sub-track 2C, now only has 10 top-level imports, all stdlib (asyncio, json, logging, sys, threading, uuid, http.server, typing) + src.module_loader (already in allowlist). Lean.
Allowlist now contains 13 lean src.* modules. Audit: 51 -> 49.
4 new tests in tests/test_audit_allowlist_2d.py: verify startup_profiler + api_hooks are lean, verify they ARE in allowlist, verify app_controller + gui_2 are NOT YET in allowlist (sub-tracks 2E and 2F will address them).
ed
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