Merge branch 'main' into claude/latest-commits-cb0c8f

# Conflicts:
#	tests/AcDream.App.Tests/Streaming/LandblockBuildOriginTests.cs

docs/ISSUES.md

@@ -1750,11 +1750,25 @@ session; the live gate covered the behavior.
 
 ## #351 — LandblockBuildOriginTests.FarLoad_StripsEnvCellsAndPhysics flake (Debug, load-sensitive)
 
-**Status:** OPEN (filed 2026-08-08). Seen three times today in Debug runs
-under parallel-agent load (5.4 implementer, Slice 6 corrections, dropdown
-polish), each time proven pre-existing by re-running against the pristine
-base commit; never reproduces in clean-room Release. An async streaming
-timing assumption most likely; deflake when it next blocks a verdict.
+**Status:** CLOSED 2026-08-09 (`c6bc2bf7`). NOT a flake and NOT timing —
+the "load-sensitive" framing was wrong: it failed deterministically on
+EVERY Debug `dotnet test` run since the test landed (`090b0354`
+introduced the test and the tripwire in the same commit; the
+parallel-agent-load correlation was just that Debug runs are rare — the
+gate config is Release). Mechanism: the test feeds a far-tier factory
+returning Near payload on purpose to prove the strip safety net, but
+`LandblockStreamer.HandleJob` is documented "fail loud in Debug builds
+and strip in Release" — its `Debug.Assert` fires on exactly that input,
+the VSTest host translates the assert into a thrown
+`DebugAssertException` (its message says so verbatim) instead of killing
+the testhost, and the worker catch folds it into a `Failed` completion,
+so `Assert.IsType<Loaded>` fails. Release compiles the assert out
+(`[Conditional("DEBUG")]`) and strips — hence "never reproduces in
+clean-room Release". Fix: the test now pins BOTH halves of the
+config-divergent contract via `#if DEBUG` (Debug expects the loud
+`Failed` carrying the assert text; Release keeps the strip assertions).
+Production code unchanged; LandblockBuildOriginTests 11/11 in both
+configs.
 
 ## #350 — Render-shadow ledger overflow after 2h42m: lifetime int counters in a never-reset accumulator