Release: build the web zip with cargo xtask web (wasm-bindgen), not trunk

LightCraft's web app is built by xtask into <target>/web; the packaging script
ported from PhotoCraft assumed trunk and dist/web. The release job now installs
wasm-bindgen-cli 0.2.129 to match Cargo.lock.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -209,7 +209,7 @@ jobs:
     env:
       LIGHTCRAFT_VERSION: ${{ needs.version.outputs.version }}
       LIGHTCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
-      TRUNK_VERSION: 0.21.14
+      WASM_BINDGEN_VERSION: 0.2.129
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
@@ -218,11 +218,12 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           key: release-web
-      - name: Install trunk
+      - name: Install wasm-bindgen CLI
         run: |
-          curl -fsSL "https://github.com/trunk-rs/trunk/releases/download/v${TRUNK_VERSION}/trunk-x86_64-unknown-linux-gnu.tar.gz" \
-            | tar -xz -C "$HOME/.cargo/bin" trunk
-          trunk --version
+          # Must match the wasm-bindgen version in Cargo.lock exactly (cargo xtask web checks it).
+          command -v wasm-bindgen >/dev/null && wasm-bindgen --version | grep -q "$WASM_BINDGEN_VERSION" \
+            || cargo install wasm-bindgen-cli --version "$WASM_BINDGEN_VERSION" --locked
+          wasm-bindgen --version
       - name: Apply version override
         if: inputs.version != ''
         run: cargo xtask version set "$LIGHTCRAFT_VERSION"