rename frank-small → frank-secondary (Dankclaw llama.cpp :7771)

Cross-cutting rename of the current llama.cpp endpoint on the RTX 3090
(port 7771) from frank-small to frank-secondary:

- Service trio: scripts/{frank-small.env,frank-small.service,
  serve-frank-small.sh,download-frank-small.sh} → frank-secondary.*
- Test: tests/frank_small_unit.bats → tests/frank_secondary_unit.bats
- Runbooks: serverAppConfigs-docs/LLM/frank-small-*.md →
  frank-secondary-*.md (9 files); the FreeToken runbook stays
  freetoken-frank-small.md (it documents the retired CUDA-era service)
- Identifiers: FRANK_SMALL→FRANK_SECONDARY, llm_small→llm_secondary,
  LLM_SMALL_*→LLM_SECONDARY_*, deploy_llm_small→deploy_llm_secondary
- Historical references to the OLD frank-small (FreeToken/CUDA on the
  3090, and the Dankserver service that became frank-medium) are
  preserved verbatim — they describe what the service was called
  at the time.

serverAppConfigs-docs/LLM/Dankclaw System Specs.md

@@ -46,7 +46,7 @@ Dankclaw is an AMD APU server for CIRU ROCmFPX llama.cpp inference. The host run
 | Runtime | FastFlowLM 0.9.45 + XRT (installed 2026-08-16; **retired 2026-09-11** with the `amd_iommu=off` decision) |
 | Status | Not in service. Research only. See [[FastFlowLM NPU Inference]] |
 
-The NPU is retired (2026-09-11). The `frank-small` name now serves Gemma4-12B QAT on the RTX 3090 via llama.cpp (see [[frank-small-gemma4-12b]]).
+The NPU is retired (2026-09-11). The `frank-secondary` name now serves Gemma4-12B QAT on the RTX 3090 via llama.cpp (see [[frank-secondary-gemma4-12b]]).
 
 ### ROCm