Fix TikTok Event Tracking

I’ve already added TikTok’s Android SDK exactly as described in their docs, yet TikTok Ads Manager still shows zero activity. What I need is a clean, verifiable implementation that lets TikTok reliably receive:

• App install
• User registration
• In-app purchase

Code is in place, but something is clearly missing—whether it’s the event payload, the initialization sequence, the App-ID setup, or signature/permissions. Your task is to audit the current integration, correct whatever is blocking the callbacks, and prove the three events reach TikTok in real time (live-test or sandbox).

I don’t need a new analytics dashboard; as long as each event appears in TikTok’s backend, the job is done. Please document the fixes you make—file paths, SDK versions, and any settings changed—so I can replicate them in future builds and CI pipelines.