feat(visual): add the slice 4g challenge fixtures and reference exhibits

Fourteen visual challenge fixtures and the first visuals for reference exhibits A through D, all executing without a line of subject-specific renderer code — which is the claim slice 4g exists to test. A subject the engine needs special handling for is a subject the format cannot express. The standalone CLI validator no longer disagrees with the production one. It had been falling through to ERR_UNSUPPORTED_TARGET for every `visuals.*` binding target, so legal exhibits — including the committed minimal-visual fixture — failed the CLI while passing the runtime. The four section 8.1 visual target families are now recognized in both, and a test runs the CLI validator across every exhibit and challenge fixture so the two paths cannot drift apart again. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01ShxxFqFmCUDQnQvFNm4TKy
2026-09-06 21:53:38 +00:00
parent a579b8e41f
commit d5d7091289
22 changed files with 2616 additions and 1 deletions
@@ -0,0 +1,60 @@
+{
+  "xzbt": "0.1",
+  "meta": {
+    "id": "weather-particles",
+    "name": "Rain particles",
+    "version": "1.0.0",
+    "description": "PRD 130 challenge 4; generic visual primitives only."
+  },
+  "runtime": {
+    "seed": 4203
+  },
+  "visuals": {
+    "scene": {
+      "coordinateSpace": "virtual",
+      "width": 960,
+      "height": 540,
+      "background": "#101d25"
+    },
+    "systems": {
+      "rain": {
+        "type": "particles",
+        "count": 240,
+        "capacity": 256,
+        "distribution": {
+          "type": "uniform",
+          "min": {
+            "x": 0,
+            "y": 0
+          },
+          "max": {
+            "x": 960,
+            "y": 540
+          }
+        },
+        "render": {
+          "type": "line",
+          "to": {
+            "x": -3,
+            "y": 15
+          },
+          "style": {
+            "stroke": "#90acba",
+            "strokeWidth": 1,
+            "opacity": 0.6
+          }
+        },
+        "velocity": {
+          "x": -35,
+          "y": 220
+        },
+        "behaviors": [
+          {
+            "type": "wrap",
+            "bounds": "scene"
+          }
+        ]
+      }
+    }
+  }
+}