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

src/tools/render_baseline_manifest.json

@@ -5,6 +5,7 @@
   "map": "Azeroth",
   "quality_preset": "High",
   "viewport": [1280, 900],
+  "fidelity_comparison_viewport": [2560, 1440],
   "camera_fov": 62.0,
   "default_wait_seconds": 8.0,
   "default_measure_seconds": 3.0,
@@ -57,7 +58,7 @@
     {
       "name": "goldshire_dense_m2",
       "coverage": ["dense_m2"],
-      "camera": [16835.0, 135.0, 26435.0],
+      "camera": [16956.666, 150.0, 26466.666],
       "target": [17015.0, 62.0, 26525.0],
       "player": [17015.0, 58.0, 26525.0],
       "time_hours": 13.0
@@ -65,7 +66,7 @@
     {
       "name": "goldshire_inn_large_wmo",
       "coverage": ["large_wmo"],
-      "camera": [16942.0, 82.0, 26503.0],
+      "camera": [17013.666, 72.0, 26451.666],
       "target": [17042.27, 66.0, 26530.91],
       "player": [17042.27, 58.0, 26530.91],
       "time_hours": 13.0
@@ -73,7 +74,7 @@
     {
       "name": "elwynn_waterfall_liquid",
       "coverage": ["liquid"],
-      "camera": [16445.0, 125.0, 26295.0],
+      "camera": [16481.666, 190.0, 26366.666],
       "target": [16518.84, 68.0, 26427.27],
       "player": [16518.84, 55.0, 26427.27],
       "time_hours": 13.0