feat: high-performance HNSW and durable async indexing

.github/workflows/ci.yml

@@ -37,6 +37,11 @@ jobs:
       - name: Verify dependencies
         run: go mod verify
 
+      - name: Verify generated SIMD assembly
+        run: |
+          go generate ./internal/util/simd
+          git diff --exit-code -- internal/util/simd/distance_amd64.s internal/util/simd/stub_amd64.go
+
       - name: Build
         run: go build -v $(go list ./... | grep -v '/examples\|/benchmark\|/tests')
 

.github/workflows/graph-tests.yml

@@ -24,5 +24,5 @@ jobs:
         with:
           go-version-file: 'go.mod'
 
-      - name: Run internal/graph tests
-        run: GOOS=${{ matrix.os }} GOARCH=${{ matrix.arch }} go test -v -race ./internal/graph/...
+      - name: Run graph, HNSW, and SIMD tests
+        run: GOOS=${{ matrix.os }} GOARCH=${{ matrix.arch }} go test -v -race ./internal/graph/... ./internal/index/hnsw ./internal/util/simd