WebAssembly support (browser + edge)

[ibrahimcesar]

Description

Compile telemetry-kit to WebAssembly for browser and edge runtime support.

Use Cases

• Browser-based CLI tools (e.g., WebContainers)
• Edge functions (Cloudflare Workers, Deno Deploy)
• In-browser IDEs
• Electron apps

Features

• wasm32-unknown-unknown target
• Browser-compatible storage (IndexedDB)
• Fetch API for sync
• Small bundle size (< 100KB gzipped)

Technical Challenges

• No filesystem access (use IndexedDB)
• No native SQLite (use sql.js or IndexedDB)
• CORS considerations for sync

Example Usage

```javascript
import init, { TelemetryKit } from '@telemetry-kit/wasm';

await init();
const telemetry = new TelemetryKit({ serviceName: 'browser-app' });
```

Acceptance Criteria

• Published as npm package
• Works in modern browsers
• Works in Cloudflare Workers
• Documentation for browser usage