fix(omp): frank-dragoon's effort map folded against rejections that do not exist

The entry rewrote every effort before the wire: `minimal -> low`, `high -> xhigh`,
`max -> xhigh`, under a comment claiming flash-server rejects anything outside
{xhigh, medium, low}. The engine says otherwise, in its own 400:

    reasoning_effort 'maximum' unsupported; use minimal|low|medium|high|xhigh|max|none

and the harness passes an unmapped level through verbatim
(`compat.reasoningEffortMap?.[effort] ?? effort`, read in the pinned `dist/cli.js`). So the
fold protected nothing and silently changed what the caller asked for. The levels are not
cosmetic either — thinking length on one prompt at `max_tokens 2048`: `low` 766 reasoning
tokens, `xhigh` 614, `max` 1049 with the block closed at 1024.

The map is identity. Two things came out of capturing the wire (scratch HOME + a logging
proxy forwarding :7799 to :7770) that reading the config could not have told me:

- `:off` does not switch thinking off. The default disable mode sends the lowest effort,
  so `off` left as `reasoning_effort: "minimal"` — and `minimal` still thinks, a canned
  26-token block on every request. `reasoningDisableMode: none-effort` makes the harness
  send `"none"`, which the engine honours as a real switch: `reasoning_tokens: 0`, answer
  only, no thinking block rendered. Verified after the change, not before it.
- `:max` still arrives as `xhigh`: the harness clamps the requested effort to its own
  ladder for this model before the map applies. Recorded in the comment as the engine-side
  half of the contract rather than papered over — nothing in models.yml forces it.

Also pinned `top_k: 20` (accepted; the comment claimed the wire matched the server sampler
while `top_k` was never sent, leaving the recipe one env edit away from drifting), and
restored the pre-callsign model ids `frank-medium` / `frank-large` / `frank-small` — the
2026-10-08 rename had replaced the old id inside its own explanation, leaving "renamed
from frank-dragoon" three times and destroying the record needed to resolve an old id.

Verified: full suite green (0 failures), `kb-lint` 0 violations, YAML parses, and the four
efforts `off/high/medium/max` captured on the wire as `none/high/medium/xhigh` with
`top_k: 20` on every request. Refs #62

omp-docs/log.md

@@ -20,6 +20,21 @@ This page is the bundle's **only** work log: one file, at the root. Never start
 second one in a subdirectory or under another name — `scripts/kb-lint.sh` reports any
 `log.md` that is not this one.
 
+## 2026-10-21 — an effort map folding against rejections that never existed
+
+`agent/models.yml` rewrote `minimal→low`, `high→xhigh` and `max→xhigh` for
+frank-dragoon to dodge 400s the engine does not send: flash-server's own error names
+its allow-list (`minimal|low|medium|high|xhigh|max|none`) and the harness passes an
+unmapped level through verbatim, so the fold only asked for a different thinking
+budget than the caller named. The map is identity now, and
+`reasoningDisableMode: none-effort` was added because the default disable mode does
+not disable — `:off` left as `reasoning_effort: "minimal"` and paid for a canned
+thinking block, where `none` returns `reasoning_tokens: 0`. Both settled by capturing
+the wire through a logging proxy rather than reading the config: a claim about what
+the harness sends is worth exactly its last capture. The same pass restored the three
+pre-callsign model ids (`frank-medium` / `frank-large` / `frank-small`) that the
+2026-10-08 rename had overwritten inside its own explanatory comments. Refs #62
+
 ## 2026-10-21 — a documented mode the panel never had
 
 The home ultrawide had been running at 60 Hz for weeks while `desk-1-home.kdl`