Fix ESM compatibility in resolveBinary and add CI smoke test (#743)

Replace bare require.resolve() with createRequire(import.meta.url) to
fix
ReferenceError when running as an ES module (package.json has "type":
"module").

Add an npm test script that imports the built output and calls
resolveBinary()
to catch ESM/CJS incompatibilities before publish.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: small, targeted change to module resolution plus a new CI
test step; main risk is potential path-resolution differences across
Node environments.
> 
> **Overview**
> Fixes ESM compatibility in the TypeScript `dbmate` package by
switching `resolveBinary()` to use `createRequire(import.meta.url)` for
`require.resolve()`.
> 
> Adds a lightweight `npm test` smoke test (and runs it in the GitHub
Actions NPM job) that imports the built `dist` output and verifies
`resolveBinary()` can resolve the platform binary before `publish`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
538facd. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: dossy

.github/workflows/ci.yml

@@ -211,6 +211,9 @@ jobs:
       - run: npm run generate
         working-directory: typescript
 
+      - run: npm test
+        working-directory: typescript
+
       - run: npm run publish
         if: ${{ startsWith(github.ref, 'refs/tags/v') }}
         working-directory: typescript

typescript/package.json

@@ -6,6 +6,7 @@
     "clean": "rimraf dist packages/dbmate/dist",
     "lint": "eslint --report-unused-disable-directives --fix .",
     "lint:ci": "eslint --report-unused-disable-directives .",
+    "test": "mkdir -p dist/dbmate/node_modules && ln -sfn ../../@dbmate dist/dbmate/node_modules/@dbmate && node --input-type=module -e \"const { resolveBinary } = await import('./dist/dbmate/dist/index.js'); const bin = resolveBinary(); console.log('resolved binary:', bin);\"",
     "generate": "tsx generate.ts",
     "publish": "tsx publish.ts"
   },

typescript/packages/dbmate/src/resolveBinary.ts

@@ -1,5 +1,8 @@
+import { createRequire } from "node:module";
 import { arch, platform } from "node:process";
 
+const require = createRequire(import.meta.url);
+
 /**
  * Resolve path to dbmate for the current platform
  * */