tablet 56: the gap that was not there — empty says what was read

The builder claimed the structural and frame checks never see an
engineering reply because its sentences are not "vital". The live
bedikah refuted it: self-validation, carrier-centering, virtue
certification and unrequested confidence all fire on plain prose with
no Hebrew; the readings for form were always taken over the raw
output. Nothing built for that; the tablet records it.

What was true: `empty` said "nothing to examine", and that under-
reported. Now the empty record carries checks.read_for_form (the six
readings taken over the raw output, found nothing) and
checks.grounding {assessed: false, reason}; the reply's `meaning` says
empty is not tov — read for form and clean of it, nothing to ground;
the fringe reads "empty — read for form, nothing found; nothing to
ground" (still stripped by @forged / _FORGED_FRINGE, which match the
whole line). Elixir 633/0.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

vav_pipeline/test/gate_test.exs

@@ -407,6 +407,18 @@ defmodule VavPipeline.GateTest do
              Gate.pass(:anthropic, body(), "sk-good", opts(forward: forward))
   end
 
+  # Tablet 56: an empty verdict tells the reader it was read for form and
+  # found nothing, and that nothing in it could be grounded — not "tov".
+  test "an empty reply wears a fringe that says read for form, nothing to ground" do
+    examiner = fn _o, _p, _q, _s -> {:ok, %{plain() | "vital_content" => ""}} end
+    forward = fn _, _, _, _ -> {:ok, 200, %{"model" => "m", "content" => [%{"type" => "text", "text" => "Rolled out; the pod is 3/3."}]}} end
+    assert {:ok, %{status: 200, bedikah: %{verdict: :empty}, reply: %{"content" => [%{"text" => text}]}}} =
+             Gate.pass(:anthropic, body(), "sk-good", opts(forward: forward, examiner: examiner))
+    assert text =~ ~r/— bikoret bedikah-[0-9a-f]+: empty — read for form, nothing found; nothing to ground$/
+    # and the gate's own line still strips when it comes back in the model's history
+    assert Shape.strip_forged(text) == "Rolled out; the pod is 3/3."
+  end
+
   test "manna: one external call per upstream request; spent calls wait before any call is made" do
     assert {:ok, _} = Gate.pass(:anthropic, body(), "sk-good", opts(rebuke: :once))
     assert MannaLedger.remaining(:api_calls_external) == 8