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- Historical references to the OLD frank-small (FreeToken/CUDA on the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/Agent/OMP Harness.md

@@ -35,12 +35,12 @@ encodes):
 1. **Source trigger** = `thresholdPercent × source contextWindow`
    (0.70 × 200,704 = 140,492 for frank-primary on the current shape)
 2. **Output budget** = capped at the target model's `maxTokens`
-   (32,768 for frank-small; 36,864 frank-primary; 57,344 frank-large — the
+   (32,768 for frank-secondary; 36,864 frank-primary; 57,344 frank-large — the
    largest, because halogen's `HALOGEN_MAX_TOKENS_CAP` must stay ≥ it)
 3. **REQUIREMENT**: prompt (≤ trigger) + budget ≤ the target's per-slot
    window. Worked pairs from the live registry: 140,492 + 36,864 = 177,356 ≤
    200,704 (frank-primary); 140,490 + 57,344 = 197,834 ≤ 200,700
-   (frank-large); 140,492 + 32,768 = 173,260 ≤ 200,704 (frank-small).
+   (frank-large); 140,492 + 32,768 = 173,260 ≤ 200,704 (frank-secondary).
 
 Procedure (recompute from the LIVE files every time — windows rotate with
 every swap; the numbers above are the 2026-10-05 state):