feat: migrate embeddings to Candle WASM + remove semantic type inference

Major architectural changes:

1. EMBEDDINGS ENGINE (ONNX → Candle WASM):
   - Replace ONNX Runtime with Rust Candle compiled to WASM
   - Embedded model in WASM binary (no external downloads)
   - Quantized Q8 precision with <50MB memory footprint
   - Zero-download, offline-first operation
   - Same embedding quality (all-MiniLM-L6-v2)

2. REMOVE SEMANTIC TYPE INFERENCE:
   - Delete embeddedKeywordEmbeddings.ts (14MB of pre-computed embeddings)
   - Remove typeAwareQueryPlanner.ts and semanticTypeInference.ts
   - Remove VerbExactMatchSignal (uses keyword embeddings)
   - Update SmartRelationshipExtractor to 3 signals (55%/30%/15% weights)

API CHANGES (requires v7.0.0):
- Removed: inferTypes(), inferNouns(), inferVerbs(), inferIntent()
- Removed: getSemanticTypeInference(), SemanticTypeInference class
- Removed: TypeInference, SemanticTypeInferenceOptions types

Users can still use natural language queries in find() - they just
need to specify type explicitly for type-optimized searches.

PACKAGE SIZE IMPACT:
- Compressed: 90.1 MB → 86.2 MB (-4.3%)
- Uncompressed: 114.4 MB → 100.3 MB (-12%)
- ~448K lines of code removed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -0,0 +1,206 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  NODE_VERSION: '20'
+  RUST_VERSION: 'stable'
+
+jobs:
+  # Build and test TypeScript/JavaScript
+  test-node:
+    name: Test (Node.js)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build TypeScript
+        run: npm run build
+
+      - name: Run unit tests
+        run: npm run test:unit
+
+      - name: Run integration tests
+        run: npm run test:integration
+
+  # Build and test with Bun
+  test-bun:
+    name: Test (Bun)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Setup Node.js (for npm compatibility)
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build TypeScript
+        run: npm run build
+
+      - name: Run Bun tests
+        run: npm run test:bun
+
+  # Build Candle WASM (if Rust source changed)
+  build-candle-wasm:
+    name: Build Candle WASM
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: dtolnay/rust-action@stable
+        with:
+          toolchain: ${{ env.RUST_VERSION }}
+          targets: wasm32-unknown-unknown
+
+      - name: Install wasm-pack
+        run: cargo install wasm-pack
+
+      - name: Cache Cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            src/embeddings/candle-wasm/target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Build WASM
+        run: |
+          cd src/embeddings/candle-wasm
+          wasm-pack build --target web --release
+
+      - name: Upload WASM artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: candle-wasm
+          path: src/embeddings/wasm/pkg/
+          retention-days: 7
+
+  # Test Bun compile (standalone binary)
+  test-bun-compile:
+    name: Test Bun Compile
+    runs-on: ubuntu-latest
+    needs: [build-candle-wasm]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Download WASM artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: candle-wasm
+          path: src/embeddings/wasm/pkg/
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build TypeScript
+        run: npm run build
+
+      - name: Test Bun compile
+        run: |
+          # Create a test script
+          cat > /tmp/test-compile.ts << 'EOF'
+          import { Brainy } from './dist/index.js'
+
+          const brainy = new Brainy()
+          await brainy.init()
+          console.log('Brainy initialized!')
+
+          const embedding = await brainy.embed('Hello world')
+          console.log(`Embedding dimension: ${embedding.length}`)
+
+          if (embedding.length !== 384) {
+            throw new Error('Expected 384-dimensional embedding')
+          }
+
+          console.log('Test passed!')
+          EOF
+
+          # Compile to standalone binary
+          bun build --compile /tmp/test-compile.ts --outfile /tmp/brainy-test
+
+          # Run the compiled binary
+          /tmp/brainy-test
+
+  # Lint and type check
+  lint:
+    name: Lint & Type Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run typecheck
+
+      - name: Lint
+        run: npm run lint
+
+  # License check
+  license-check:
+    name: License Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Check licenses
+        run: |
+          # Install license checker
+          npm install -g license-checker
+
+          # Check for problematic licenses
+          license-checker --production --excludePrivatePackages \
+            --failOn 'GPL;LGPL;AGPL;SSPL' \
+            --summary