PLANS.md

Architecture Cockpit remediation plan

Change A — graph paging

• Patch packages/core/contextmine_core/twin/service.py to replace blunt sorted-node paging with deterministic edge-aware windows and to expose slice metadata.
• Patch apps/api/app/routes/twin.py to expose the same slice metadata and warnings for topology, deep dive, and paged specialty graphs.

Change B — architecture grouping

• Patch packages/core/contextmine_core/twin/grouping.py to make path fallback conservative and reject generic/support roots.
• Patch packages/core/contextmine_core/twin/projections.py to retain explicit-vs-heuristic provenance on projected architecture nodes.

Change C — cockpit provenance and empty states

• Patch apps/web/src/cockpit/types.ts and apps/web/src/cockpit/hooks/useCockpitData.ts to carry slice/provenance/warning metadata end to end.
• Patch apps/web/src/cockpit/views/TopologyView.tsx, DeepDiveView.tsx, TestMatrixView.tsx, OverviewView.tsx, EvolutionView.tsx, and C4DiffView.tsx to render missing-data, heuristic, degraded, and truncation reasons more explicitly.
• Update backend/frontend tests for the changed payloads and warnings.