fix(sdd): task reviewers re-read illegible evidence instead of re-running to regenerate it

Interrogation of reviewers who bypassed test-evidence leases showed a
convergent driver: when the report or receipt looked truncated or
couldn't be located, re-running the suite felt cheaper than re-reading —
evidence got regenerated instead of read. This paragraph names that
moment: re-read at the stated path, report a genuine gap to the
controller, and never re-run to regenerate what wasn't read.

Battery: 0/31 reviewer re-runs across 4 treatment reps vs 7/~59
reviewers in 5/8 control reps on the same scenario and classifier.

Claude-Session: https://claude.ai/code/session_0185AJr98gHx5EmwqNeft4Sy

skills/subagent-driven-development/task-reviewer-prompt.md

@@ -84,6 +84,13 @@ Subagent (general-purpose):
     Warnings or other noise in the implementer's reported test output are
     findings — test output should be pristine.
 
+    Evidence you cannot see is not evidence that doesn't exist. If the
+    report or its test evidence looks truncated, or you cannot locate the
+    results it claims, re-read the file at its stated path — and if it is
+    genuinely missing or garbled, report that as a gap for the controller.
+    Re-running the suite to regenerate what you failed to read is not
+    verification; illegibility of the evidence is not invalidation of it.
+
     ## Part 1: Spec Compliance
 
     Compare the diff against What Was Requested: