Bugfix: Force isomorphic-git ESM entry + ship sourcemaps

`isomorphic-git`'s `exports."."` only declares a CJS entry, which `require`s Node's `crypto`. Vite 7 (Rollup) was loose enough to pick the `module` field; Vite 8 (Rolldown) follows `exports` strictly and bundled the CJS path, crashing the worker with `o.createHash is not a function`. Alias the package to its `index.js` (pure-JS SHA-1, no Node `crypto`).

Also turn on production sourcemaps for the app and the worker. The maps are external `.map` files — browsers only fetch them when DevTools is open, so there's no cost for regular visitors and prod stack traces become readable.

Author: vdavid

vite.config.ts

@@ -1,12 +1,24 @@
+import { fileURLToPath } from 'node:url'
 import devtoolsJson from 'vite-plugin-devtools-json'
 import { sveltekit } from '@sveltejs/kit/vite'
 import tailwindcss from '@tailwindcss/vite'
 import { defineConfig } from 'vitest/config'
 
 export default defineConfig({
     plugins: [tailwindcss(), sveltekit(), devtoolsJson()],
+    build: { sourcemap: true },
+    worker: { format: 'es', rollupOptions: { output: { sourcemap: true } } },
     // Vite 8 (Rolldown) no longer rewrites bare `global` to `globalThis` in worker bundles, breaking UMD polyfills like `fast-text-encoding` (pulled in by `lightning-fs`) that probe `typeof global`.
     define: { global: 'globalThis' },
+    // `isomorphic-git`'s `exports."."` only declares a CJS entry that imports Node's `crypto`. Force the ESM entry, which uses a pure-JS SHA-1 instead.
+    resolve: {
+        alias: [
+            {
+                find: /^isomorphic-git$/,
+                replacement: fileURLToPath(new URL('./node_modules/isomorphic-git/index.js', import.meta.url)),
+            },
+        ],
+    },
     server: {
         port: Number(process.env.CONDUCTOR_PORT) || 5233,
         strictPort: true,