more features checks. setup improvements

docs/features/checked/signals/relational-call-graph-postgresql-schema.md

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+# Relational Call-Graph PostgreSQL Schema
+
+## Module
+Signals
+
+## Status
+VERIFIED
+
+## Description
+PostgreSQL migration scripts define relational tables for call-graph data storage.
+
+## Implementation Details
+- **Modules**: `src/Signals/__Libraries/StellaOps.Signals.Persistence/`
+- **Key Classes**:
+  - `SignalsDbContext` (`src/Signals/__Libraries/StellaOps.Signals.Persistence/EfCore/Context/SignalsDbContext.cs`) - EF Core database context for Signals persistence
+- **Migrations**:
+  - `001_initial_schema.sql` (`src/Signals/__Libraries/StellaOps.Signals.Persistence/Migrations/001_initial_schema.sql`) - initial schema with call-graph tables
+  - `002_runtime_agent_schema.sql` (`src/Signals/__Libraries/StellaOps.Signals.Persistence/Migrations/002_runtime_agent_schema.sql`) - runtime agent tables
+  - `V3102_001__callgraph_relational_tables.sql` (archived) - call-graph relational table definitions (func_nodes, call_edges, cve_func_hits)
+- **Models**: `FuncNodeDocument`, `CallEdgeDocument`, `CveFuncHitDocument` (`src/Signals/StellaOps.Signals/Models/ReachabilityStore/`)
+- **Source**: Feature matrix scan
+
+## E2E Test Plan
+- [ ] Run migration scripts and verify all call-graph tables are created (func_nodes, call_edges, cve_func_hits)
+- [ ] Insert call-graph data via `SignalsDbContext` and verify round-trip persistence
+- [ ] Verify relational integrity: insert edges referencing func_nodes and confirm foreign key constraints
+- [ ] Query call paths using relational joins and verify correct path reconstruction
+- [ ] Verify index performance: query by CVE ID and confirm results return within acceptable latency