Add CI jobs for C, Go, and WASM playground examples

- c-embedding: Build library and C examples, run all examples
- go-wazero: Build WASM and run Go unit tests
- wasm-playground: Build WASM and run browser e2e tests

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

Author: DmitryBochkarev

.github/workflows/ci.yml

@@ -73,3 +73,99 @@ jobs:
 
       - name: Build WASM
         run: cargo build --target wasm32-unknown-unknown --features wasm --no-default-features
+
+  c-embedding:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-c-api-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-c-api-
+
+      - name: Build library with C API
+        run: cargo build --release --features c-api
+
+      - name: Build C examples
+        working-directory: examples/c-embedding
+        run: make all
+
+      - name: Run C examples
+        working-directory: examples/c-embedding
+        run: make run-all
+
+  go-wazero:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-wasm-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-wasm-
+
+      - name: Build and test Go examples
+        working-directory: examples/go-wazero
+        run: ./build.sh --test
+
+  wasm-playground:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-wasm-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-wasm-
+
+      - name: Build and test WASM playground
+        working-directory: examples/wasm-playground
+        run: ./build.sh --test