feat(ui): Terrakotta Nacht replaces Soft, smooth menus and sliding notes on phones

- dark counterpart of Terrakotta; Soft users move to it
- add tailwindcss-animate: the existing animate-in/fade/slide classes now
  run; menus zoom in, sheets slide up, notes slide in on phones
- no animations with reduced motion

chore(release): v0.13.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mindsift-frontend",
-  "version": "0.12.2",
+  "version": "0.13.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mindsift-frontend",
-      "version": "0.12.2",
+      "version": "0.13.0",
       "license": "Unlicense",
       "dependencies": {
         "@fontsource-variable/inter": "5.3.0",
@@ -33,6 +33,7 @@
         "jsdom": "^25.0.1",
         "postcss": "^8.4.49",
         "tailwindcss": "^3.4.17",
+        "tailwindcss-animate": "1.0.7",
         "typescript": "^5.6.3",
         "typescript-eslint": "8.18.2",
         "vite": "^5.4.11",
@@ -4782,6 +4783,16 @@
         "node": ">=14.0.0"
       }
     },
+    "node_modules/tailwindcss-animate": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/tailwindcss-animate/-/tailwindcss-animate-1.0.7.tgz",
+      "integrity": "sha512-bl6mpH3T7I3UFxuvDEXLxy/VuFxBk5bbzplh7tXI68mwMokNYd1t9qPBHlnyTwfa4JGC4zP516I1hYYtQ/vspA==",
+      "dev": true,
+      "license": "MIT",
+      "peerDependencies": {
+        "tailwindcss": ">=3.0.0 || insiders"
+      }
+    },
     "node_modules/thenify": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",