Add sync workspace deps script

scripts/sync-workspace-deps.ts

@@ -0,0 +1,40 @@
+import fs from 'node:fs';
+import path from 'node:path';
+
+// After `npm version --workspaces` bumps each package's version, this rewrites dependency ranges that point at sibling
+// workspaces so they follow along.
+
+const root = path.join(import.meta.dirname, '..');
+
+const workspaceDirs = ['.', ...fs.readdirSync(path.join(root, 'packages')).map(x => `packages/${x}`)]
+	.filter(dir => fs.existsSync(path.join(root, dir, 'package.json')));
+
+type Manifest = {
+	name: string;
+	version: string;
+	dependencies?: Record<string, string>;
+};
+
+const manifests = workspaceDirs.map((dir) => {
+	const filePath = path.join(root, dir, 'package.json');
+	return { filePath, json: JSON.parse(fs.readFileSync(filePath, 'utf8')) as Manifest };
+});
+
+const versions = new Map(manifests.map(({ json }) => [json.name, json.version]));
+
+for (const { filePath, json } of manifests) {
+	let changed = false;
+
+	for (const name of Object.keys(json.dependencies ?? {})) {
+		const version = versions.get(name);
+		if (version && json.dependencies![name] !== `^${version}`) {
+			json.dependencies![name] = `^${version}`;
+			changed = true;
+		}
+	}
+
+	if (changed) {
+		fs.writeFileSync(filePath, JSON.stringify(json, null, 2) + '\n');
+		console.log(`Synced workspace dependency ranges in ${path.relative(root, filePath)}`);
+	}
+}