Dev Intel Pipeline v2 — multi-language semantic graph extractor

Phase 1: extract.js — tree-sitter AST parser (TS/JS/Python/Go/Java/Bash) + config parsers (YAML/HCL)
Phase 2: graph.js — in-memory directed graph store with build/query/diff CLI
Phase 3: namespace.js — cross-repo namespace registry with 3-tier resolution
Phase 4: semantic-diff.js — categorized diffs with impact scoring (0-100)
Phase 5: pipeline.js — batch extraction, incremental diffing, benchmarking

Benchmark: 4,325 files, 21,646 nodes, 133,979 edges in 67s (15ms/file)
BMad SPA reviews: all phases GO

test/ground-truth/go-server.json

@@ -0,0 +1,98 @@
+{
+  "file": "/tmp/test_go.go",
+  "language": "go",
+  "entities": [
+    {
+      "id": "test_go.go",
+      "type": "Module",
+      "name": "test_go.go",
+      "kind": "module",
+      "visibility": "public",
+      "line_range": [
+        1,
+        21
+      ]
+    },
+    {
+      "id": "dep:fmt",
+      "type": "Dependency",
+      "name": "fmt",
+      "kind": "import",
+      "visibility": "internal",
+      "line_range": [
+        4,
+        4
+      ]
+    },
+    {
+      "id": "dep:net/http",
+      "type": "Dependency",
+      "name": "net/http",
+      "kind": "import",
+      "visibility": "internal",
+      "line_range": [
+        5,
+        5
+      ]
+    },
+    {
+      "id": "test_go.go:Start",
+      "type": "Function",
+      "name": "Start",
+      "kind": "method",
+      "visibility": "public",
+      "line_range": [
+        12,
+        15
+      ]
+    },
+    {
+      "id": "test_go.go:main",
+      "type": "Function",
+      "name": "main",
+      "kind": "function",
+      "visibility": "internal",
+      "line_range": [
+        17,
+        20
+      ]
+    }
+  ],
+  "relationships": [
+    {
+      "type": "IMPORTS",
+      "source": "test_go.go",
+      "target": "dep:fmt"
+    },
+    {
+      "type": "IMPORTS",
+      "source": "test_go.go",
+      "target": "dep:net/http"
+    },
+    {
+      "type": "CONTAINS",
+      "source": "test_go.go",
+      "target": "test_go.go:Start"
+    },
+    {
+      "type": "CALLS",
+      "source": "test_go.go:Start",
+      "target": "fmt.Println"
+    },
+    {
+      "type": "CALLS",
+      "source": "test_go.go:Start",
+      "target": "http.ListenAndServe"
+    },
+    {
+      "type": "CONTAINS",
+      "source": "test_go.go",
+      "target": "test_go.go:main"
+    },
+    {
+      "type": "CALLS",
+      "source": "test_go.go:main",
+      "target": "s.Start"
+    }
+  ]
+}