Fix wasm-pack output for Vite 8/rolldown production builds

Rewrite generated yaak_templates.js to use Vite's ?init import style
instead of the ES Module Integration style that rolldown doesn't support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates/yaak-templates/build-wasm.cjs

@@ -1,4 +1,6 @@
 const { execSync } = require('node:child_process');
+const fs = require('node:fs');
+const path = require('node:path');
 
 if (process.env.SKIP_WASM_BUILD === '1') {
   console.log('Skipping wasm-pack build (SKIP_WASM_BUILD=1)');
@@ -6,3 +8,20 @@ if (process.env.SKIP_WASM_BUILD === '1') {
 }
 
 execSync('wasm-pack build --target bundler', { stdio: 'inherit' });
+
+// Rewrite the generated entry to use Vite's ?init import style instead of
+// the ES Module Integration style that wasm-pack generates, which Vite/rolldown
+// does not support in production builds.
+const entry = path.join(__dirname, 'pkg', 'yaak_templates.js');
+fs.writeFileSync(
+  entry,
+  [
+    'import init from "./yaak_templates_bg.wasm?init";',
+    'export * from "./yaak_templates_bg.js";',
+    'import * as bg from "./yaak_templates_bg.js";',
+    'const instance = await init({ "./yaak_templates_bg.js": bg });',
+    'bg.__wbg_set_wasm(instance.exports);',
+    'instance.exports.__wbindgen_start();',
+    '',
+  ].join('\n'),
+);

crates/yaak-templates/pkg/yaak_templates.js

@@ -1,5 +1,6 @@
-import * as wasm from "./yaak_templates_bg.wasm";
+import init from "./yaak_templates_bg.wasm?init";
 export * from "./yaak_templates_bg.js";
-import { __wbg_set_wasm } from "./yaak_templates_bg.js";
+import * as bg from "./yaak_templates_bg.js";
-__wbg_set_wasm(wasm);
+const instance = await init({ "./yaak_templates_bg.js": bg });
-wasm.__wbindgen_start();
+bg.__wbg_set_wasm(instance.exports);
+instance.exports.__wbindgen_start();