research(track-a): run exhaustive inbound static census

[blakinio]

Terminal disposition

Researcher source for OTC-20260818-track-a-s1-unfiltered-static-census.

Final researcher head: b381a2a614c503f3d021af98432df99a069305c7.

Coordinator review accepted the result with bounded edits and promoted the durable evidence to main via PR #511, squash merge a9e7ab21ed0962482e4381aadd50be92714785a6.

Canonical promoted result:

PROTOCOL_MESSAGE_TOTAL=349
CLIENT_TO_SERVER=160
SERVER_TO_CLIENT=189
RECEIVED_MESSAGE_STRING_TOTAL=189
RECEIVED_EXACT_STEM_MATCHES=188
RECEIVED_NAMING_VARIANTS=1
PROTOCOL_MESSAGE_HANDLER_CLASS_XREFS=47
COMMON_UPSTREAM_INBOUND_DISPATCHER=UNKNOWN

The coordinator retained generated-message -> concrete handler dispatch, received-method -> handler ownership, handler -> storage mutation and common upstream dispatcher topology as UNKNOWN.

Source exact-head validation was green: Track A governance 32114161352, CI 32114161531, CI / Required 95639907436; reviews/threads 0/0.

Source Draft is intentionally closed unmerged after coordinator promotion. No runtime/login/Synology/X11/process-memory/credential use occurred and PR #475 runtime was not observed or mutated.