Add LLM key-hunter toolkit, vault, and skill

- tools/scripts/llm-key-hunter: GitHub leak hunting pipeline (hunt_*,
  pivot miner, two-layer verify/content caches, per-provider verification)
- usable_keys: verified key vault across 12 providers (deepseek, minimax,
  volcanoark, longcat, codingplan, zhipu free-tier, mimo, siliconflow, etc.)
- .grok/skills/llm-key-hunter: operator skill for the hunt/verify/vault flow
- NewAPI channel import scripts and CDP capture helpers
- Result verdict buckets (excluding multi-GB blob caches and dedup dumps)

tools/scripts/recreate_channels_v2.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+"""Recreate NewAPI channels with type 8 (Custom) using full endpoint URLs.
+
+Thin wrapper around recreate_channels.py --custom.
+Kept for backwards compatibility.
+"""
+
+import sys
+sys.argv.append("--custom")
+
+from recreate_channels import main
+main()