Re-verify both extension boundaries against the enlarged index (T04)

Neither boundary has an ownership conflict now that declarations cover the
corpus, so the central claim of both acceptances holds. Name resolution is a
different matter, and it had never been checked: both original reviews verified
their import manifests by file hash, every hash matched, and that was recorded
as evidence. A hash proves the reviewed file is the pinned file; it says nothing
about whether the concept named in the manifest exists in it.

SecurityCanon: five of twelve imports named concepts their pinned artifact does
not define, corrected on that side to eleven imports. InterfaceCanon: twenty-one
of twenty-five resolve exactly, and two of the four failures were this
repository's omission — SoftwareSystem and SoftwareComponent are Landscape seed
concepts that extraction cannot read and are now declared, making those pins
correct. Interface and Endpoint resolve to the Network Model, which the accepted
clarifications already treat as contextual rather than exact aliases; those pins
are InterfaceCanon's to correct.

Both boundary files carry the re-verification and its method limit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 3588@bnt-lap001
Assistant-Session: 24b80f66-e5a7-4e61-99fe-2d422e6d17da

infospace/agent/briefs/model-landscape.md

@@ -35,6 +35,8 @@ Imports and anchors:
 - `LandscapeSource`
 - `LandscapeState`
 - `RuntimeResource`
+- `SoftwareComponent`
+- `SoftwareSystem`
 - `TechnicalService`
 - `Workload`