fix: inline version at build time instead of createRequire

Replace runtime `createRequire` + `package.json` read with tsup's
`define` option to inline the version string at build time. This
removes the dependency on package.json being on disk next to dist/
and works correctly in bundled/deploy environments.

Closes #10

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

Author: satoshai-dev

src/cli.ts

@@ -1,14 +1,12 @@
-import { createRequire } from 'node:module';
 import { defineCommand, runMain } from 'citty';
 import { fetchCommand } from './commands/fetch.js';
 
-const require = createRequire(import.meta.url);
-const { version } = require('../package.json') as { version: string };
+declare const __VERSION__: string;
 
 const main = defineCommand({
   meta: {
     name: 'abi-cli',
-    version,
+    version: __VERSION__,
     description: 'Fetch Stacks contract ABIs and generate TypeScript definitions',
   },
   subCommands: {

tsup.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig } from 'tsup';
+import pkg from './package.json';
 
 export default defineConfig([
   {
@@ -14,6 +15,7 @@ export default defineConfig([
   {
     entry: ['src/cli.ts'],
     format: ['esm'],
+    define: { __VERSION__: JSON.stringify(pkg.version) },
     banner: { js: '#!/usr/bin/env node' },
     sourcemap: true,
     splitting: false,