docs: curved-wall observation states only the recorded matrix outcome

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/supported_settings.md

@@ -70,8 +70,8 @@ Tests: `tests/unit/test_jets.py`, `test_jets_review.py`, `test_shifted_jets.py`,
   every per-sample screen passed; the constant explosion's aggregate worst velocity L2,
   0.004418, exceeds its preregistered 0.002 budget, while projected_linear passed that budget.
 - Curved-wall pressure (pilot harness, exact-q analytic annulus, tau 0.8): the coarse swirl r1
-  case exceeded its terminal density-gain cap (1.105e-4 vs 1e-4); r2/r4 stayed within the
-  frozen matrix limits. No validated fix exists.
+  case exceeded its terminal density-gain cap (1.105e-4 vs 1e-4), so the frozen 9-case matrix
+  is NOT_ESTABLISHED. No validated fix exists. This is a pilot harness, not production code.
 - DFG 2D-1 Re 20 (V4, SRT, t* 60, pressure-NEQ outlet and local Zou-He inlet): refined and uniform
   runs were NOT_STEADY under the frozen steady rule, so no interval verdict was given.