docs: add Dankclaw improvements research (agentic tools, runtime tuning, server/OS)

docs/index.md

@@ -52,6 +52,7 @@ DFlash draft, port 7770]
 - [[Running Qwen3.6 35B A3B FP8 on Dankserver]] — MoE model (35B total, 3B active) on RTX 3090
 - [[Running Qwen3.6 27B FP8 on Dankclaw]] — Dense model (27B) on Strix Halo APU
 - [[frank-default-large-benchmark]] — backend/spec benchmark that drove the Dankclaw llama.cpp deployment
+- [[Dankclaw Improvements]] — researched enhancements: self-hosted agentic tools, runtime tuning, server/OS settings
 
 ## Speculative Decoding & Quantization