add new runtime-info utility

Author: nicknisi

src/common/utils/runtime-info.ts

@@ -0,0 +1,66 @@
+import { detectRuntime } from './env';
+
+export interface RuntimeInfo {
+  name: string;
+  version?: string;
+}
+
+/**
+ * Get runtime information including name and version.
+ * Safely extracts version information for different JavaScript runtimes.
+ * @returns RuntimeInfo object with name and optional version
+ */
+export function getRuntimeInfo(): RuntimeInfo {
+  const name = detectRuntime();
+  let version: string | undefined;
+
+  try {
+    switch (name) {
+      case 'node':
+        // process.version includes 'v' prefix (e.g., "v20.5.0")
+        version = typeof process !== 'undefined' ? process.version : undefined;
+        break;
+
+      case 'deno':
+        // Deno.version.deno returns just version number (e.g., "1.36.4")
+        version = (globalThis as any).Deno?.version?.deno;
+        break;
+
+      case 'bun':
+        version = globalThis.Bun?.version || extractBunVersionFromUserAgent();
+        break;
+
+      // These environments typically don't expose version info
+      case 'cloudflare':
+      case 'fastly':
+      case 'edge-light':
+      case 'other':
+      default:
+        version = undefined;
+        break;
+    }
+  } catch {
+    version = undefined;
+  }
+
+  return {
+    name,
+    version,
+  };
+}
+
+/**
+ * Extract Bun version from navigator.userAgent as fallback.
+ * @returns Bun version string or undefined
+ */
+function extractBunVersionFromUserAgent(): string | undefined {
+  try {
+    if (typeof navigator !== 'undefined' && navigator.userAgent) {
+      const match = navigator.userAgent.match(/Bun\/(\d+\.\d+\.\d+)/);
+      return match?.[1];
+    }
+  } catch {
+    // Ignore errors
+  }
+  return undefined;
+}