Emoji reactions on songs

React to a friend's current song or any of their recent plays: tap an
emoji to add yours (or take it back), "☺+" for the quick six, and a full
picker with search and categories (Unicode emoji up to 13.1, generated
into the shared package so web and mobile match). One reaction per person
per play; a new one replaces the old. Chips show counts and, on hover/
long label, who reacted; yours is highlighted. Listeners and followers get
the update live. Not on your own plays, not across a block (blocking also
clears reactions between the two people).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MzFywujuH9TiuXbr9vjoX8

package-lock.json

@@ -19662,6 +19662,13 @@
         "node": ">=4"
       }
     },
+    "node_modules/unicode-emoji-json": {
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/unicode-emoji-json/-/unicode-emoji-json-0.9.0.tgz",
+      "integrity": "sha512-HdrQW/7SdbXUsTd8uTATv7LvQJkCSgbAgRCDCtOhQ6xn3EAx+xZHQtRniOXWJK3ywIqPegkNhP4U4EbuFsiQng==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/unicode-match-property-ecmascript": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/unicode-match-property-ecmascript/-/unicode-match-property-ecmascript-2.0.0.tgz",
@@ -20300,6 +20307,7 @@
         "zod": "^4.6.5"
       },
       "devDependencies": {
+        "unicode-emoji-json": "^0.9.0",
         "vitest": "^5.0.3"
       }
     },