bump version to 0.1.2 and add bump-patch script for version management

scripts/bump-patch.mjs

@@ -0,0 +1,35 @@
+#!/usr/bin/env node
+
+import fs from 'node:fs';
+import path from 'node:path';
+import semver from 'semver';
+
+function bump(fileName, version) {
+    const filePath = path.resolve(process.cwd(), fileName);
+
+    if (!fs.existsSync(filePath)) {
+        throw new Error(`File not found: ${filePath}`);
+    }
+
+    const json = JSON.parse(fs.readFileSync(filePath, 'utf8'));
+    const currentVersion = json.version;
+
+    if (typeof currentVersion !== 'string') {
+        throw new Error(`${fileName} does not contain a string "version" field.`);
+    }
+
+    const nextVersion = version ?? semver.inc(currentVersion, 'patch');
+
+    if (!nextVersion) {
+        throw new Error(`Unsupported semver format: "${currentVersion}"`);
+    }
+
+    json.version = nextVersion;
+
+    fs.writeFileSync(filePath, `${JSON.stringify(json, null, 4)}\n`, 'utf8');
+    console.log(`Bumped version in ${fileName} to ${nextVersion}`);
+    return nextVersion;
+}
+
+const bumpedVersion = bump('package.json');
+bump('package-lock.json', bumpedVersion);