Revert "feat(registry): the video-primitive moves, documented and customisable (#3090)" (#3162)

This reverts commit 3b53bfd2f7.

registry/components/line-swap/registry-item.json

@@ -1,83 +0,0 @@
-{
-  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
-  "name": "line-swap",
-  "type": "hyperframes:component",
-  "title": "Line Swap",
-  "description": "A masked full-line beat replacement: line A holds center then exits up through an overflow-hidden mask as line B enters bottom-up on the same beat, with an optional accent underline drawing beneath one word of line B.",
-  "tags": ["motion-primitive", "text-effects", "swap", "beat", "deterministic"],
-  "jobs": ["emphasize"],
-  "family": "text-effects",
-  "profile": "beat-swap",
-  "evidence": "Wave J2-5: generalizes flagship frame 01, the overflow-hidden mask slot with a single restrained beat replacement and a scaleX underline draw",
-  "syncPoints": [{ "id": "line-swap-beat", "phase": "in", "offset": 1.5 }],
-  "files": [
-    {
-      "path": "line-swap.html",
-      "target": "compositions/components/line-swap.html",
-      "type": "hyperframes:snippet"
-    }
-  ],
-  "variables": [
-    {
-      "id": "line_a",
-      "type": "string",
-      "role": "content",
-      "label": "Line A",
-      "description": "First line; holds center inside the mask, then exits up on the swap beat.",
-      "default": "Everyone promised you AI."
-    },
-    {
-      "id": "line_b",
-      "type": "string",
-      "role": "content",
-      "label": "Line B",
-      "description": "Replacement line; enters bottom-up on the swap beat and holds.",
-      "default": "Almost nobody promised you control."
-    },
-    {
-      "id": "swap_at",
-      "type": "number",
-      "role": "timing",
-      "label": "Swap at",
-      "description": "Second (from mount start) of the beat replacement. Clamped so the swap and underline complete before any exit.",
-      "default": 1.5,
-      "min": 0,
-      "step": 0.1,
-      "unit": "s"
-    },
-    {
-      "id": "underline_word",
-      "type": "string",
-      "role": "content",
-      "label": "Underline word",
-      "description": "First case-insensitive substring match in line B gets the accent underline after landing. Empty disables it.",
-      "default": "control"
-    },
-    {
-      "id": "accent",
-      "type": "enum",
-      "role": "style",
-      "label": "Accent",
-      "description": "Underline color from the contract token map.",
-      "default": "green",
-      "options": [
-        { "value": "green", "label": "Green" },
-        { "value": "blue", "label": "Blue" },
-        { "value": "violet", "label": "Violet" }
-      ]
-    },
-    {
-      "id": "exit",
-      "type": "enum",
-      "role": "timing",
-      "label": "Exit",
-      "description": "Optional departure. Default none: the landed line holds until the frame cuts.",
-      "default": "none",
-      "options": [
-        { "value": "none", "label": "None" },
-        { "value": "fade", "label": "Fade" },
-        { "value": "up", "label": "Up" }
-      ]
-    }
-  ]
-}