v0.2 — CIDR Scanning, Configurable EDNS, Robust Offline Mode

What's New

CIDR Scanning

• --cidr flag: Scan IP ranges directly — findns scan --cidr 5.52.0.0/16 --domain t.example.com
• Multiple ranges: --cidr 5.52.0.0/16 --cidr 185.51.200.0/24
• TUI Custom CIDR: New input option to type a CIDR range in the interactive UI
• Safety cap at 1M IPs to prevent OOM

Configurable EDNS Buffer Size

• --edns-size flag: Set EDNS0 UDP payload size (default 1232)
• Lower if fragmented (--edns-size 900), raise for faster tunnels (--edns-size 4096)
• TUI EDNS Size field: Configurable in the interactive config screen

Robust Offline Mode

• Zero-config: Auto-loads 7,854 bundled Iranian resolvers — no -i needed
• Auto-default output: Saves to results.json when no -o flag
• Auto-generate _ips.txt: Plain IP list alongside JSON results
• Fetch fallback: Auto-falls back to bundled resolvers when online download fails

Scan Improvements

• Preflight removed — no more checks that fail in filtered networks
• Platform-aware binary finder for dnstt-client/slipstream-client
• Worker buffer capped at workers*4 to prevent OOM

Docs

• README and GUIDE.md updated (English + Farsi)

Full Changelog: v0.1.9...v0.2