Use custom SVG avatars for PR Review Canvas and Docs Canvas

Replace the borrowed PNG avatar with purpose-drawn SVGs that read as a
matched pair:

- pr-review-canvas: canvas frame + three descending hunk bars + a
  callout dot in the upper-right, hinting at "diff reorganized for
  reviewer comprehension with tricky-thing callouts".
- docs-canvas: canvas frame + three TOC bullets on the left + three
  descending body-text bars on the right, hinting at "doc with ToC and
  navigable sections".

Both are single-color (currentColor), 24x24 viewBox, no external
dependencies, and suitable for scaling on marketplace cards.

Made-with: Cursor

docs-canvas/.cursor-plugin/plugin.json

@@ -10,7 +10,7 @@
   "homepage": "https://github.com/cursor/plugins/tree/main/docs-canvas",
   "repository": "https://github.com/cursor/plugins",
   "license": "MIT",
-  "logo": "assets/avatar.png",
+  "logo": "assets/avatar.svg",
   "keywords": [
     "cursor-plugin",
     "canvas",

docs-canvas/assets/avatar.svg

@@ -0,0 +1,9 @@
+<svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" fill="currentColor" role="img" aria-label="Docs Canvas">
+  <rect x="2.25" y="3.25" width="19.5" height="17.5" rx="2.25" fill="none" stroke="currentColor" stroke-width="1.5"/>
+  <circle cx="6" cy="8" r="1.1"/>
+  <circle cx="6" cy="12" r="1.1"/>
+  <circle cx="6" cy="16" r="1.1"/>
+  <rect x="9.5" y="7.1" width="10" height="1.8" rx="0.5"/>
+  <rect x="9.5" y="11.1" width="8.5" height="1.8" rx="0.5" opacity="0.65"/>
+  <rect x="9.5" y="15.1" width="10" height="1.8" rx="0.5" opacity="0.4"/>
+</svg>

pr-review-canvas/.cursor-plugin/plugin.json

@@ -10,7 +10,7 @@
   "homepage": "https://github.com/cursor/plugins/tree/main/pr-review-canvas",
   "repository": "https://github.com/cursor/plugins",
   "license": "MIT",
-  "logo": "assets/avatar.png",
+  "logo": "assets/avatar.svg",
   "keywords": [
     "cursor-plugin",
     "canvas",

pr-review-canvas/assets/avatar.svg

@@ -0,0 +1,7 @@
+<svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" fill="currentColor" role="img" aria-label="PR Review Canvas">
+  <rect x="2.25" y="3.25" width="19.5" height="17.5" rx="2.25" fill="none" stroke="currentColor" stroke-width="1.5"/>
+  <rect x="5.25" y="6.75" width="9.5" height="2" rx="0.6"/>
+  <rect x="5.25" y="11" width="13.5" height="2" rx="0.6" opacity="0.55"/>
+  <rect x="5.25" y="15.25" width="7.5" height="2" rx="0.6" opacity="0.3"/>
+  <circle cx="17.75" cy="7.75" r="2.25"/>
+</svg>