docs: add texture mask text catalog entry (#650)

* feat(registry): add texture mask PNGs for texture-mask-text component

* feat(registry): add texture-mask-text CSS snippet

* feat(registry): add registry-item.json for texture-mask-text

* feat(registry): add texture-mask-text demo composition

* feat(registry): register texture-mask-text component in manifest

* style: format texture-mask-text files with oxfmt

* fix: set mask-image directly on texture classes instead of via CSS custom property

url() inside CSS custom properties doesn't resolve correctly with mask-image
in some browsers. Move mask-image declarations to each texture class directly.

* docs: add texture mask text catalog entry

* test: lint texture mask text usage

* fix: harden texture mask text docs and lint

* fix: stabilize texture mask asset paths

* fix: address texture catalog review feedback

* fix: harden texture mask text instructions

* docs: remove texture catalog intro copy

* docs: use canonical texture preview URL

* docs: use cdn texture mask assets

* fix: escape catalog frontmatter safely

* test: stabilize windows render cli test

* test: pin texture catalog instructions

registry/registry.json

@@ -59,6 +59,10 @@
       "name": "grid-pixelate-wipe",
       "type": "hyperframes:component"
     },
+    {
+      "name": "texture-mask-text",
+      "type": "hyperframes:component"
+    },
     {
       "name": "instagram-follow",
       "type": "hyperframes:block"