kb: retire pi-installation association (OMP is the primary harness)

Purge live-state claims that ~/.pi is our harness; keep general
pi documentation in omp-docs/ and dated historical records.

- README.md: single config source; Legacy Notes reworded
- AGENTS.md: drop 'like ~/.pi did' framing
- APPEND_SYSTEM.md: okf-spec -> omp-docs/references/okf-spec.md
- dotfiles/zsh/.zshrc: systemprompt alias -> APPEND_SYSTEM.md
- managed skill llm-fleet-model-swap + model_config_sync skill:
  single-source models.yml; validation script YAML-only
- memories (MEMORY.md, memory_summary.md, learned.md): single source
- omp-docs: .okf root -> ~/.omp/omp-docs; de-live pi-era claims in
  pi/index.md, pi-web-access.md, engineering/agents-files.md

agent/memories/--home-blank-Projects-serverAppConfig--/raw_memories.md

@@ -1,5 +1,15 @@
 # Raw Memories
 
+## 01a0ac72-2620-750f-82dd-79c84e00e98d
+updated_at: 1789631572
+DANKCLAW HARDWARE: AMD Strix Halo APU (gfx1151), Radeon 8060S iGPU. Has an M.2 dock slot used to carry an RTX 3090 at PCIe x4 (link downgraded from x16). This is distinct from dankserver (ASUS TUF GAMING B650-E WIFI) which has a free CPU-attached M.2_2 slot for an R9700 riser (~$30 M.2→PCIe x4 riser).
+
+DANKCLAW LLM DEPLOYMENTS:
+- frank-small: Qwen3.8-27B GSQ-RCO IQ3_S + MTP on RTX 3090 (M.2 dock, PCIe x4). Decode 61-82 t/s, prefill 430-1013 t/s. VRAM at 92% (22,614/24,576 MiB). PCIe utilization only ~3% during decode (compute-bound, not transport-bound). --parallel 1, 8 CPU threads.
+- frank-large (halogen): runs on the iGPU (gfx1151), decode 37-48 t/s, MTP commit 1.60-1.88 tokens/round. Prefix caching confirmed working.
+
+UNANSWERED QUESTION: User asked specifically about the M.2 slot in context of a Qwen Flash deployment running with pipeline parallelism on dankclaw. The assistant's response was aborted (OMP process exited) before answering. This likely refers to a llama.cpp pipeline-parallel setup where the Qwen Flash model's layers are split across the iGPU and the 3090 in the M.2 dock, using the M.2 slot as the interconnect between the two compute devices.
+
 ## 01a0ac6b-61a9-7505-b00a-52dd4cbb4ff3
 updated_at: 1789599423
 ## Rootless Podman restart policy pitfall