docs: AOT/ネイティブコンパイル情報をexecution-backends.mdに追加

- 4つ目の実行方式としてAOT（Ahead-of-Time）コンパイルを文書化
- MIR→WASM→.cwasm のコンパイルパイプラインを説明
- wasm-backend featureでのビルド方法を明記
- 現在の実装状況（完全なスタンドアロン実行ファイルはTODO）を記載
- CLAUDE.mdのWASM説明も3種類（Rust→WASM、Nyash→WASM、Nyash→AOT）に更新
- CURRENT_TASK.mdにPhase 10.9/10.10の完了項目を追加

ChatGPT5さんのAOT試行に対応した適切なドキュメント配置を実施

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

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

.github/workflows/smoke.yml

@@ -0,0 +1,85 @@
+name: Smoke (Phase 10.10)
+
+on:
+  push:
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'tools/**'
+      - 'Cargo.toml'
+      - 'Cargo.lock'
+      - 'docs/**'
+      - '.github/workflows/smoke.yml'
+  pull_request:
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'tools/**'
+      - 'Cargo.toml'
+      - 'Cargo.lock'
+      - 'docs/**'
+
+jobs:
+  smoke:
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+      # Disable external plugins to keep CI deterministic
+      NYASH_DISABLE_PLUGINS: '1'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust (stable)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry and build
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+
+      - name: Run smoke script
+        run: bash tools/smoke_phase_10_10.sh
+
+  smoke-compile-events:
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+      NYASH_DISABLE_PLUGINS: '1'
+      NYASH_JIT_EVENTS_COMPILE: '1'
+      NYASH_JIT_HOSTCALL: '1'
+      NYASH_JIT_EVENTS_PATH: events.jsonl
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust (stable)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry and build
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+
+      - name: Build
+        run: cargo build --release -j2 --features cranelift-jit
+
+      - name: Run HH example (compile events)
+        run: ./target/release/nyash --backend vm examples/jit_map_get_param_hh.nyash
+
+      - name: Verify events contain phase:lower
+        run: |
+          test -f events.jsonl
+          grep -q '"phase":"lower"' events.jsonl