P4-1: ServiceStartup order non-deterministic (map iteration)
P4-2: ACTION dispatch synchronous and blocking
P4-3: ACTION !OK stops chain (wrong for broadcast)
P4-4: IPC clone-and-iterate safe but undocumented
P4-5: PerformAsync has no backpressure (unlimited goroutines)
P4-6: ConfigVar.Set() has no lock (data race)
P4-7: PerformAsync shutdown TOCTOU race
P4-8: Named lock "srv" shared across all service ops
Key finding: ACTION stopping on !OK is a bug for broadcast semantics.
Registry[T] resolves P4-1 (insertion order) and P4-8 (per-registry locks).
RFC now 2,269 lines. Four passes, 32 findings total.
Co-Authored-By: Virgil <virgil@lethean.io>