ci(llvm): add ny-llvmc object generation workflow (crate path) using hello_simple_llvm sample

.github/workflows/llvm-ny-llvmc-obj.yml

@@ -0,0 +1,49 @@
+name: llvm-ny-llvmc-obj
+
+on:
+  push:
+    branches: [ main, master, "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  ny-llvmc-obj:
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust (stable)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install LLVM 18 and Python deps
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y curl ca-certificates lsb-release wget gnupg python3-pip
+          curl -fsSL https://apt.llvm.org/llvm.sh -o llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh 18
+          llvm-config-18 --version
+          python3 -m pip install --upgrade pip
+          python3 -m pip install llvmlite
+
+      - name: Build nyash (release)
+        run: cargo build --release -j 2
+
+      - name: Generate object via ny-llvmc (crate path)
+        env:
+          NYASH_LLVM_COMPILER: crate
+          NYASH_LLVM_ONLY_OBJ: "1"
+        run: |
+          bash tools/build_llvm.sh apps/tests/hello_simple_llvm.nyash -o app
+          ls -la target/aot_objects
+          test -f target/aot_objects/hello_simple_llvm.o
+
+      - name: Print object file type
+        run: |
+          file target/aot_objects/hello_simple_llvm.o || true
+