frank-small: Q5_K_M -> Q6_K rung at the held 2x200704 f16-KV shape

The freed third slot funded exact V; the remaining ~3.5 GiB of honest
nvidia-smi free (3,571, not the 4,046 total-minus-used I quoted - the
driver holds ~450 MiB of reserve) funds the +875 MiB of Q6_K weights.
Projected landing ~2.7 GiB free, inside the 2-3 GiB floor; measure on
boot, step the pool one 12,288-token increment if it lands under 2 GiB.

- payload dir MiMo-Q6K/ made self-contained (mmproj hardlinked from
  MiMo-Q5KM/, link-count-2 verified)
- env/serve/deployer/bats repointed; download script now fetches and
  verifies Q6_K (7,793,710,624 B, ef96d05a...) with Q5_K_M documented as
  the rollback; payload sha verified live on the host before deploy
- seam green 14/14 against the stub engine

scripts/deploy-remote.sh

@@ -1198,12 +1198,12 @@ deploy_llm_large() {
 #
 # It is a SEPARATE endpoint on port 7771; frank-large keeps 7770. The 3090 is
 # not shared: frank-large's engine runs on the gfx1151 iGPU.
-LLM_SMALL_MODEL_FILE="${LLM_SMALL_MODEL_FILE:-/home/dank/models/MiMo-Q5KM/MiMo-V2.6-Distill-Qwen-9B-Q5_K_M.gguf}"
+LLM_SMALL_MODEL_FILE="${LLM_SMALL_MODEL_FILE:-/home/dank/models/MiMo-Q6K/MiMo-V2.6-Distill-Qwen-9B-Q6_K.gguf}"
 LLM_SMALL_RUNTIME="${LLM_SMALL_RUNTIME:-/home/dank/GitPackages/llama-master/build-cuda/bin/llama-server}"
-# The projector IS the vision capability here: the Q5_K_M GGUF ships no `v.*`
+# The projector IS the vision capability here: the Q6_K GGUF ships no `v.*`
 # tensors, so a deploy that starts without this file silently ships a
 # text-only endpoint. Checked unconditionally, like frank-large's.
-LLM_SMALL_MMPROJ="${LLM_SMALL_MMPROJ:-/home/dank/models/MiMo-Q5KM/mmproj-MiMo-V2.6-Distill-Qwen-9B-f16.gguf}"
+LLM_SMALL_MMPROJ="${LLM_SMALL_MMPROJ:-/home/dank/models/MiMo-Q6K/mmproj-MiMo-V2.6-Distill-Qwen-9B-f16.gguf}"
 
 deploy_llm_small() {
     # Refuse rather than restart-loop: a unit whose runtime or payload is