fix: wrangler build requirements

Author: zmh-program

server/build.js

@@ -2,14 +2,40 @@ const { execSync } = require('child_process');
 const fs = require('fs');
 const path = require('path');
 
+// Install Rust if not installed
+console.log('Installing Rust toolchain...');
+try {
+  execSync('rustc --version');
+  console.log('Rust already installed');
+} catch {
+  console.log('Installing Rust...');
+  execSync('curl --proto "=https" --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y', {
+    stdio: 'inherit'
+  });
+  // Add cargo to PATH
+  process.env.PATH = `${process.env.HOME}/.cargo/bin:${process.env.PATH}`;
+}
+
+// Install wasm-pack if not installed
+console.log('Installing wasm-pack...');
+try {
+  execSync('wasm-pack --version');
+  console.log('wasm-pack already installed');
+} catch {
+  console.log('Installing wasm-pack...');
+  execSync('curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh', {
+    stdio: 'inherit'
+  });
+}
+
 if (!fs.existsSync('server/pkg')) {
-  fs.mkdirSync('server/pkg');
+  fs.mkdirSync('server/pkg', { recursive: true });
 }
 
 console.log('Building WebAssembly module...');
 execSync('wasm-pack build --target web --out-dir server/pkg --no-default-features --features worker', {
   stdio: 'inherit',
-  cwd: path.resolve(__dirname, '..'),
+  cwd: process.cwd(),
 });
 
 console.log('Generating TypeScript types...');
@@ -23,6 +49,6 @@ export interface AnalyzeOptions {
 export function analyze_url(url: string, options: AnalyzeOptions): Promise<any>;
 `;
 
-fs.writeFileSync(path.join(__dirname, 'pkg', 'bytes_radar.d.ts'), typesContent);
+fs.writeFileSync(path.join(process.cwd(), 'server/pkg', 'bytes_radar.d.ts'), typesContent);
 
-console.log('Build complete!'); 
+console.log('Build complete!');