feat: Windows .bat launcher for codewhale (v2, rebased + review fixes) (#1861)

* fix: Windows .bat launcher with correct JS escaping and codewhale rebrand

* fix: complete Windows bat release asset handling

---------

Co-authored-by: cy2311 <cy2311@users.noreply.github.com>
Co-authored-by: Hunter B <hmbown@gmail.com>

scripts/release/prepare-local-release-assets.js

@@ -10,6 +10,9 @@ const {
   detectBinaryNames,
 } = require("../../npm/codewhale/scripts/artifacts");
 
+const WINDOWS_LAUNCHER = "codewhale.bat";
+const WINDOWS_CLI_ASSET = "codewhale-windows-x64.exe";
+
 async function sha256(filePath) {
   const content = await fs.readFile(filePath);
   return crypto.createHash("sha256").update(content).digest("hex");
@@ -41,6 +44,9 @@ async function main() {
 
   if (prepareAllAssets) {
     for (const assetName of allAssetNames()) {
+      if (assetName === WINDOWS_LAUNCHER) {
+        continue;
+      }
       if (assets.some((asset) => asset.target === assetName)) {
         continue;
       }
@@ -62,6 +68,25 @@ async function main() {
     manifestLines.push(`${await sha256(outputPath)}  ${asset.target}`);
   }
 
+  if (assets.some((asset) => asset.target === WINDOWS_CLI_ASSET)) {
+    const batContent = [
+      "@echo off",
+      "where wt >nul 2>nul",
+      "set NO_ANIMATIONS=1",
+      'if "%ERRORLEVEL%"=="0" (',
+      '    wt --title CodeWhale cmd /k "%~dp0codewhale-windows-x64.exe"',
+      ") else (",
+      '    "%~dp0codewhale-windows-x64.exe"',
+      ")",
+      "",
+    ].join("\r\n");
+    const batPath = path.join(outputDir, WINDOWS_LAUNCHER);
+    await fs.writeFile(batPath, batContent, "utf8");
+    const batHash = await sha256(batPath);
+    manifestLines.push(`${batHash}  ${WINDOWS_LAUNCHER}`);
+    console.log(`Generated ${batPath}`);
+  }
+
   manifestLines.sort();
   const manifestPath = path.join(outputDir, CHECKSUM_MANIFEST);
   await fs.writeFile(manifestPath, `${manifestLines.join("\n")}\n`, "utf8");