fix(node-ui): canonicalize context graph layer counts

[Jurij89]

Summary

• Resolves the M6 count-scope divergence by making useMemoryEntities().counts represent distinct visible entities in their current WM/SWM/VM layer, counted once by trustLevel.
• Threads that canonical count into the MemoryStrip layer count and layer stats/action widgets so top-level count surfaces share the same source.
• Documents and tests the promoted/multi-layer case that caused raw triple-subject counts to disagree with displayed layer entities.

Related

• Follow-up to fix(node-ui): fill context graph route panel #598, fix(node-ui): restore context graph detail origins #599, fix(node-ui): stabilize swm graph coloring #600, fix(node-ui): rebuild verifiable memory panel #601, and fix(node-ui): improve context graph contrast #603 in the Context Graph UX rollout.
• Implements PR 1.4 / M6 from agent-docs/context-graph-implementation-plan.md.
• Merge gate: G-Q7 remains open until a populated/known-count context graph confirms the canonical count against live data.

Files changed

File	What
packages/node-ui/src/ui/hooks/useMemoryEntities.ts	Computes canonical layer counts from visible entities grouped by current trustLevel.
packages/node-ui/src/ui/views/project/components.tsx	Consumes canonical counts in MemoryStrip and layer stats/action surfaces.
packages/node-ui/test/use-memory-entities-counts.test.ts	Adds promoted/multi-layer, duplicate-subject, and object-only URI count coverage.
packages/node-ui/test/use-memory-entities-live-updates.test.ts	Tightens mock layer discrimination so SWM/VM queries do not receive WM fixtures.

Test plan

• pnpm --filter @origintrail-official/dkg-node-ui exec vitest run test/use-memory-entities-counts.test.ts test/use-memory-entities-live-updates.test.ts test/use-memory-entities-partial.test.ts test/vm-hero-banner.test.ts test/ui-compat.test.ts
• pnpm --filter @origintrail-official/dkg-node-ui run build
• pnpm --filter @origintrail-official/dkg-node-ui run build:ui
• git diff --check
• Local PR review from pr-diff.patch: no actionable findings remain.
• G-Q7 manual/live validation on a populated context graph with known WM/SWM/VM membership before merge.

[github-actions]

Codex review completed — no issues found.