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/llm-key-hunter/results/ai_tools/codeium/dead.txt

@@ -0,0 +1 @@
+7a766920-d460-47e9-8aae-530234851bca|https://github.com/CraigglesO/.config/blob/650c20536783af928d07e6d9bc9c96037bb5eb35/helix/languages.toml|{"source": "env"}|401 {"code":"unauthenticated","message":"missing auth token (trace ID: 8361f9957d8e8