feat(registry): bring back the video-primitive moves (#3169)

Restores the 208 catalog items reverted after their previews 404'd in
production, this time on the payload mechanism rather than the .html files
that caused the outage.

The generator no longer writes a preview document to docs/public. That writer,
and the machinery under it, existed only to produce files the docs host
discards, so it is gone rather than bypassed. Items now embed the composition
itself via a payload, which is what the previous change already does for the
items that were already in the catalog.

The variables explorer is parked, not restored: it drove its preview through
the same unpublished .html path, so it would have shown an empty frame. Items
that declare variables get the live player plus the static variables table, and
reconnecting the explorer to payloads is a follow-up.

registry/components/chromatic-aberration-wipe/registry-item.json

@@ -0,0 +1,80 @@
+{
+  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
+  "name": "chromatic-aberration-wipe",
+  "type": "hyperframes:component",
+  "title": "Chromatic Aberration Wipe",
+  "description": "A fast slide wipe with RGB channel split on peak frames.",
+  "tags": ["video-primitive", "transition-primitive", "remocn-port"],
+  "files": [
+    {
+      "path": "chromatic-aberration-wipe.html",
+      "target": "compositions/components/chromatic-aberration-wipe.html",
+      "type": "hyperframes:snippet"
+    }
+  ],
+  "variables": [
+    {
+      "id": "direction",
+      "type": "enum",
+      "role": "motion",
+      "label": "Direction",
+      "description": "The direction the reveal travels; both scenes slide the same way and the wipe edge follows.",
+      "default": "left",
+      "options": [
+        {
+          "value": "left",
+          "label": "Left"
+        },
+        {
+          "value": "right",
+          "label": "Right"
+        },
+        {
+          "value": "up",
+          "label": "Up"
+        },
+        {
+          "value": "down",
+          "label": "Down"
+        }
+      ]
+    },
+    {
+      "id": "accent",
+      "type": "enum",
+      "role": "style",
+      "label": "Accent",
+      "description": "Colour family of the incoming scene's gradient.",
+      "default": "blue",
+      "options": [
+        {
+          "value": "blue",
+          "label": "Blue"
+        },
+        {
+          "value": "green",
+          "label": "Green"
+        },
+        {
+          "value": "violet",
+          "label": "Violet"
+        }
+      ]
+    },
+    {
+      "id": "aberration",
+      "type": "number",
+      "role": "style",
+      "label": "Aberration",
+      "description": "Multiplies the red/cyan channel split: 0 removes it, 1 is the stock strength, 2 doubles the offset and saturates the flash.",
+      "default": 1,
+      "min": 0,
+      "max": 2,
+      "step": 0.1,
+      "unit": "x"
+    }
+  ],
+  "preview": {
+    "poster": "https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/chromatic-aberration-wipe.png"
+  }
+}