more features checks. setup improvements

docs/features/checked/signals/signals-callgraph-ingestion-with-content-addressed-storage.md

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+# Signals Callgraph Ingestion with Content-Addressed Storage
+
+## Module
+Signals
+
+## Status
+VERIFIED
+
+## Description
+Callgraph normalization pipeline accepting Java/Node/Python/Go call-graph formats, normalizing to canonical symbol representation, and storing with content-addressed identifiers for deterministic replay.
+
+## Implementation Details
+- **Modules**: `src/Signals/StellaOps.Signals/Services/`, `src/Signals/StellaOps.Signals/Parsing/`, `src/Signals/StellaOps.Signals/Models/`
+- **Key Classes**:
+  - `CallgraphIngestionService` (`src/Signals/StellaOps.Signals/Services/CallgraphIngestionService.cs`) - ingests call graphs from multiple language formats and normalizes to canonical representation
+  - `CallgraphParserResolver` (`src/Signals/StellaOps.Signals/Parsing/ICallgraphParserResolver.cs`) - resolves language-specific parsers (Java, Node, Python, Go)
+  - `CallgraphIngestRequest` (`src/Signals/StellaOps.Signals/Models/CallgraphIngestRequest.cs`) - ingest request model
+  - `CallgraphIngestResponse` (`src/Signals/StellaOps.Signals/Models/CallgraphIngestResponse.cs`) - ingest response with content-addressed IDs
+  - `CallgraphManifest` (`src/Signals/StellaOps.Signals/Models/CallgraphManifest.cs`) - manifest tracking ingested call-graph documents
+  - `CallgraphSchemaVersions` (`src/Signals/StellaOps.Signals/Models/CallgraphSchemaVersions.cs`) - schema version constants for call-graph formats
+- **Interfaces**: `ICallgraphIngestionService`, `ICallgraphParserResolver`
+- **Source**: SPRINT_0143_0001_0001_signals.md
+
+## E2E Test Plan
+- [ ] Ingest a Java call graph and verify it is normalized to canonical symbol representation
+- [ ] Ingest call graphs for Node, Python, and Go and verify language-specific parsing
+- [ ] Verify content-addressed storage: ingest the same call graph twice and confirm the same content ID is returned
+- [ ] Verify deterministic replay: retrieve a stored call graph by content ID and confirm it matches the original
+- [ ] Verify schema version handling: ingest call graphs with different schema versions
+
+## Verification
+- **Run ID**: run-001
+- **Date**: 2026-02-12
+- **Result**: PASS (Tier 0 + Tier 1 + Tier 2d)
+- **Tests**: CallgraphIngestionServiceTests (1 test) - ingestion, normalization, CAS storage, graph hash, manifest