Simplify TSJS core library - remove rendering/auction logic

[aram356]

Description

⚠️ BREAKING CHANGE: Remove ad rendering and auction logic from the core TSJS library, keeping only configuration and logging.

Removed APIs

• tsjs.addAdUnits() - ad unit registration
• tsjs.renderAdUnit() - single ad unit rendering
• tsjs.renderAllAdUnits() - batch ad unit rendering
• tsjs.requestAds() - auction request
• tsjs.getHighestCpmBids() - bid retrieval
• tsjs.que - command queue

Kept APIs

• tsjs.version - version string
• tsjs.setConfig() - configuration
• tsjs.getConfig() - get current config
• tsjs.log - logging utilities

Removed Files

• core/queue.ts, registry.ts, render.ts, request.ts, util.ts
• core/styles/normalize.css, core/templates/iframe.html
• integrations/ext/ (Prebid shim - replaced by prebid integration)
• integrations/testlight/ (obsolete test integration)

Migration

Use the GAM interceptor integration (#249) for rendering Prebid creatives, or the Prebid NPM integration (#250) for server-side bidding.

Bundle size

Reduced from ~32KB to ~23KB (gzipped: ~7.5KB)

Related

• PR: Simplify TSJS core library - remove rendering/auction logic #243
• Depends on: Add GAM interceptor integration - frontend #249
• Parent: Unable to render prebidjs ads with NextJS #179