fix(M00): release GUI capture render resources

Work-Package: M00-QAR-GUI-RID-SHUTDOWN-001
Agent: sindo-main-codex
Tests: render baseline dry-run; runtime cache shutdown; comparator self-test; coordination and documentation gates
Fidelity: shutdown-only ownership fix; no visual or Blizzlike335 behavior change

docs/M00_FINAL_PAIRED_EVIDENCE.md

@@ -62,7 +62,9 @@ The reports demonstrate current differences and do not claim `1:1`. Camera calib
 
 ## Operational risks
 
-The full GUI visual capture completed and wrote its report, but Godot still emitted renderer RID/resource leak diagnostics at exit, including leaked material, shader, texture, instance and rendering-device RIDs. The earlier anonymous headless `RefCounted` leak is fixed; these GUI renderer allocations are a distinct known risk. They do not invalidate the written images or metrics, but must remain recorded rather than hidden.
+A follow-up shutdown ownership fix removed the GUI renderer leaks found by the final visual capture. Before the fix, the focused animated-M2 checkpoint retained 6 mesh, 6 material, 4 shader, 6 texture, 6 instance and associated RenderingDevice RIDs, for 30 resources in use. After the fix, both the focused 8-second capture and a seven-checkpoint single-pass capture completed without Node, resource or RID leak diagnostics.
+
+Godot can still emit a timing-dependent ObjectDB warning for one or more anonymous `RefCounted` objects whose reported reference count is already zero. The warning has no retained Node, renderer resource or RID ownership in the verified captures. It remains recorded as an engine-teardown diagnostic rather than being hidden, but it is distinct from the resolved GUI renderer leak.
 
 ## Integrator decision checklist
 
@@ -70,5 +72,5 @@ The full GUI visual capture completed and wrote its report, but Godot still emit
 - Animated M2: build-12340 native motion observed in two phases; synthetic/real placement mismatch explicitly classified.
 - Sky transition: build-12340 19:00 evidence present with approximate paired camera and human-approved composition.
 - Renderer visual differences: registered as gaps, not parity claims.
-- GUI renderer RID/resource diagnostics: accepted as a tracked risk or assigned a follow-up blocker.
+- GUI renderer RID/resource diagnostics: resolved by explicit shutdown ownership and covered by a headless regression verifier; the residual zero-reference `RefCounted` engine-teardown warning remains tracked separately.
 - Target status, target Evidence and `OPENWC_TARGET_DONE` marker: integrator-only actions.