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/usable_keys/siliconflow/key_01_sk-uqrbjystsbssskbzx.txt

@@ -0,0 +1,7 @@
+PROVIDER : siliconflow - SiliconFlow (硅基流动)
+KEY      : sk-uqrbjystsbssskbzxqjypiszvldanfguwwfeinsapotkflll
+DETAIL   : OK {"id":"019fbd7c77578aa069470a2e659ae87e","object":"chat.comp
+SOURCE   : https://github.com/Dying-Autumn/Personal-Knowledge-Base-Management-System/blob/191776aefecb14d6da0720b631abb0ff4e87998a/R2R/docker/env/r2r-full.env
+BASE_URL : https://api.siliconflow.cn/v1
+MODELS   : ['Qwen/Qwen2.5-7B-Instruct', '(many open models)']
+VERIFIED : 2026-08-01 13:21 UTC

tools/scripts/llm-key-hunter/usable_keys/siliconflow/keys.env

@@ -0,0 +1,7 @@
+# OK {"id":"019fbd7c77578aa069470a2e659ae87e","object":"chat.comp
+# src: https://github.com/Dying-Autumn/Personal-Knowledge-Base-Management-System/blob/191776aefecb14d6da0720b631abb0ff4e87998a/R2R/docker/env/r2r-full.env
+SILICONFLOW_API_KEY=sk-uqrbjystsbssskbzxqjypiszvldanfguwwfeinsapotkflll
+
+# RESTRICTED (KYC-gated, not 401 but 403 identity verification required)
+# src: https://github.com/123fjh/circuitmind/blob/HEAD/GUI/utils/config.py
+SILICONFLOW_API_KEY=sk-ptyrqcoakodsijdqglxbzucezfvdmdolzxxfafdpozixljdr

tools/scripts/llm-key-hunter/usable_keys/siliconflow/keys.json

@@ -0,0 +1,22 @@
+[
+  {
+    "key": "sk-uqrbjystsbssskbzxqjypiszvldanfguwwfeinsapotkflll",
+    "source": "https://github.com/Dying-Autumn/Personal-Knowledge-Base-Management-System/blob/191776aefecb14d6da0720b631abb0ff4e87998a/R2R/docker/env/r2r-full.env",
+    "detail": "OK {\"id\":\"019fbd7c77578aa069470a2e659ae87e\",\"object\":\"chat.comp",
+    "base_url": "https://api.siliconflow.cn/v1",
+    "models": [
+      "Qwen/Qwen2.5-7B-Instruct",
+      "(many open models)"
+    ],
+    "auth": "Bearer"
+  },
+  {
+    "key": "sk-ptyrqcoakodsijdqglxbzucezfvdmdolzxxfafdpozixljdr",
+    "source": "https://github.com/123fjh/circuitmind/blob/HEAD/GUI/utils/config.py",
+    "detail": "KYC-gated: authenticates (not 401) but 403 \"complete identity verification\" on all models and /user/info",
+    "base_url": "https://api.siliconflow.cn/v1",
+    "models": [],
+    "auth": "Bearer",
+    "status": "RESTRICTED_KYC"
+  }
+]