Merge vllmScripts under llm/ (history-preserving import)

The vllmScripts repository (LLM inference fleet: serve scripts, systemd
units, env tunables, deployment runbook, research docs) is merged into
this repository. Its full history is grafted under llm/ with a
two-parent merge commit so no commit is lost.

A follow-up commit reorganizes llm/ into the repo layout:
llm/docs -> docs/LLM, llm/scripts -> scripts, llm/old -> old.

llm/old/scripts/frank-default-large.env

@@ -0,0 +1,88 @@
+# Head tunables — Qwen3.8-27B pipeline-parallel head (Dankclaw).
+#
+# The head is the LOCAL side of the split. It runs llama-server (b10433,
+# HIP+Vulkan+RPC build in /home/dank/llama.cpp/build) with --rpc pointing at
+# the worker on Dankserver. The model file lives on this machine only; the
+# worker receives its tensor share over the network at load time.
+#
+# CRITICAL: this script must NOT pass --device. When --device is set,
+# llama.cpp uses exactly that device list and silently drops the RPC device
+# (src/llama.cpp llama_prepare_model_devices). Default device selection
+# inserts RPC servers at the FRONT of the device list, so the split becomes
+# [RPC0, iGPU] and --tensor-split index 0 is the worker.
+#
+# WARNING: do not name any variable here TEMP, HOST, or GPU_MAX_HEAP_SIZE
+# (HIP runtime collision, see the 2026-08-13 TEMP incident).
+
+MODEL_DIR=/home/dank/models
+MODEL_FILE=Qwen3.8-27B-Uncensored-Q6_K.gguf
+HEAD_BIN=/home/dank/llama.cpp/build/bin/llama-server
+ALIAS=frank-default-large
+BIND_ADDR=0.0.0.0
+LISTEN_PORT=7770
+
+# Comma-separated RPC endpoints (host:port). One worker here.
+RPC_SERVERS=192.168.0.235:50052
+
+# Model split fractions, one per device in order [RPC0, iGPU].
+# 0.68,0.32 = 45 of 65 blocks on the 3090 (blocks 0-44) - the maximum
+# for the Q6_K + q8_0/f16 KV config, measured 2026-08-17 phase 2:
+#  - KV per FA layer = 784 MiB (K 1088 B/token + V 2048 B/token @262144)
+#  - weights(f) = 20334 MB layer pool x f (GGUF scan, exact); embd on
+#    the head side (RPC0 buffer observed 10429.88 MiB at f=0.53)
+#  - KV-per-device count = round(f x 66) layers -> 45 layers = 11 FA
+#    (3..43) -> 8624 MiB. 46 layers (f>=0.7045) still 11 FA but margin
+#    drops to ~0.4 GiB; 48 layers (f>=0.7197) adds FA block 47 -> KV
+#    9408 -> OOM by ~0.85 GiB.
+# Predicted: 13430 (weights) + 8624 (KV) + ~530 (RS) + 189 (compute) =
+# ~22773 MiB -> ~0.7 GiB free. Draft model runs on ROCm0 only (measured
+# phase 1: 1718 MiB, no worker impact).
+TENSOR_SPLIT=0.68,0.32
+
+# Context pool. 262144 total = 1 parallel slot x 262144 per slot
+# (n_ctx_seq = n_ctx / n_seq_max, llama-context.cpp:293).
+CTX_SIZE=262144
+PARALLEL=1
+
+# Speculative decoding. MTP with the STANDALONE draft head (the Q6_K
+# model has no bundled MTP head; the repo ships the draft sidecar) + the
+# ngram-mod fallback. Set SPEC_NONE=1 for a raw baseline.
+SPEC_NONE=0
+SPEC_DEFAULT=1
+MTP=1
+SPEC_DRAFT_N_MAX=4
+# Standalone MTP draft head (Q8_0 MTP-only sidecar from the same repo).
+SPEC_DRAFT_MODEL=/home/dank/models/Qwen3.8-27B-Uncensored-draft-Q8_0.gguf
+SPEC_NGRAM_MOD_N_MIN=48
+SPEC_NGRAM_MOD_N_MAX=64
+SPEC_NGRAM_MOD_N_MATCH=24
+
+# KV on GPU: K q8_0 + V f16 (mismatched, 16 full-attention layers x 4
+# heads x 256 dim: K = 1088 B/token, V = 2048 B/token -> 3136 B/token ->
+# 784 MiB per FA layer at 262144, 12.25 GiB total). Mismatched K/V with
+# Flash Attention requires the GGML_CUDA_FA_ALL_QUANTS rebuild (2026-08-17:
+# head HIP + worker CUDA at 9b05354ec). Do not revert the binaries without
+# also reverting this.
+CACHE_TYPE_K=q8_0
+CACHE_TYPE_V=f16
+
+# Batch sizing: production-verified values (2026-08-14).
+BATCH_SIZE=8192
+UBATCH_SIZE=256
+
+# Sampling — Qwen3.8 thinking-mode defaults.
+TEMPERATURE=1.0
+TOP_K=20
+TOP_P=0.95
+MIN_P=0.0
+
+THREADS=12
+THREADS_HTTP=1
+
+# 4 (info): clean journal for interactive use. Raise to 10 only when
+# debugging the layer split (the per-layer assignment lines are debug-level).
+VERBOSITY=4
+
+# 1: --direct-io model load. Required in practice for large models loaded
+# over RPC (load hangs otherwise; visorcraft Strix RPC finding).
+DIRECT_IO=1