Fix: Stabilize key-free search tool with random User-Agents and Cheerio parsing

Refactor: Use ImageMagick/libheif for conversion and Tesseract.js for OCR

Build: Add missing OCR dependencies to package.json

feat: integrate sk-cdx API keys and Qwen3-Coder-480B engine

Strategic Migration: Complete NeDB Architecture with Cloud Persistence and Image Recognition Fixes (Clean)

initial