v3.0.0

v3.0.0: full async rewrite + wizard + TUI dashboard

- Pure asyncio (aiohttp + aiohttp-socks) replaces thread pools
- Modular package layout under proxy_scraper/
- 2-sample latency check with variance rejection
- Anonymous / transparent / elite classification via httpbin headers
- Country lookup via ip-api.com batch
- Multiple output formats: txt, txt-url, json, csv, combined
- 150 source catalog (74 HTTP + 35 SOCKS4 + 41 SOCKS5) with persistent health ledger
- Interactive wizard with single-parser CLI, --non-interactive bypass
- Multi-region Rich Live dashboard (TTY) with plain-ASCII fallback
- Cross-platform: Windows (ctypes VT processing), Linux, macOS
- 61 tests, CI on Python 3.9-3.12, ruff + mypy

BREAKING: complete rewrite from v2.0 — see CHANGELOG.md for details.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>