test(M00): calibrate paired renderer checkpoints

Work-Package: M00-QAR-VISUAL-DIFF-001
Agent: sindo-main-codex
Tests: synthetic JPG/PNG diff, manifest, coordination and documentation gates
Fidelity: five build 12340 references compared; coordinate and placement gaps recorded

docs/modules/world-renderer.md

@@ -194,7 +194,7 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 
 - Unit/contract tests: material mapping, unique-ID dedupe, placement probes, baseline manifest, synthetic perceptual checkpoint diff.
 - Integration/E2E: Eastern Kingdoms/Kalimdor streaming scenes and seven cold/warm checkpoints.
-- Fidelity evidence: current fixed-position captures and automated paired-PNG metrics exist; approved original-client paired screenshots and human approval are still missing.
+- Fidelity evidence: пять локальных build 12340 reference JPG откалибровали terrain/ADT/M2/WMO/liquid viewpoints; automated paired-image metrics exist, но synthetic animation/dusk и полный human approval ещё не закрыты.
 - Performance budgets: M00 report records cold/warm p95 and max hitch; no final acceptance threshold yet.
 - Manual diagnostics: [`../RENDER_BASELINE.md`](../RENDER_BASELINE.md) and [`../../RENDER.md`](../../RENDER.md).
 
@@ -222,6 +222,7 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 - Monolithic streamer mixes planning, jobs, caches and presentation.
 - Direct camera path remains until M01/M03.
 - Original-client paired fidelity evidence incomplete.
+- Первый paired run выявил coordinate/placement mismatch: несколько совпадающих server-derived camera positions оказываются под terrain или внутри WMO/rocks OpenWC.
 - D3D12 descriptor and shutdown RID/resource issues remain.
 - M2/WMO/material/particle/ribbon/portal parity incomplete.
 - Public API is mostly exported configuration rather than stable contracts.
@@ -239,7 +240,8 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 | `src/native/src/*_loader.cpp` | Native binary parsing |
 | `src/tools/build_*cache.gd`, `src/tools/bake_*cache.gd` | Offline cache generation |
 | `tools/run_render_baseline.ps1` | Unified M00 baseline runner |
-| `src/tools/compare_render_checkpoints.gd` | Offline paired-PNG perceptual metrics and JSON pass/fail report |
+| `src/tools/compare_render_checkpoints.gd` | Offline JPG/PNG paired-image perceptual metrics and JSON pass/fail report |
+| `src/tools/capture_render_checkpoints.gd` | Deterministic no-roll checkpoint camera, performance and visual capture |
 
 ## Related decisions and references