Redesign the UI after the fitness reference and replace the logo

Light sage-to-cream ambient backdrop, frosted glass controls and painted
SceneArt landscapes in place of photography. Home becomes a dashboard with a
two-tone greeting, a frosted summary ring, category portraits, an up-next rail
of image-led cards and a floating glass tab bar. The routine library gets an
image header and painted cards; the player gets a scene stage, steps on an
arc, a dotted clock and a night pill with a lime spark. Goals become painted
cards in their own colour.

New logo: a lime sun resting on a ground line under two arcs. The splash
raises the sun and lights the arcs; launcher icons and native splash are
regenerated to match.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KhQh614DMeYoQEH9SoMRUw

frontend/pubspec.yaml

@@ -104,15 +104,15 @@ flutter:
 flutter_launcher_icons:
   image_path: "assets/icons/icon.png"
   android: "ic_launcher"
-  adaptive_icon_background: "#141414"
+  adaptive_icon_background: "#18211C"
   adaptive_icon_foreground: "assets/icons/icon_foreground.png"
   min_sdk_android: 21
   ios: true
   remove_alpha_ios: true
   web:
     generate: true
-    background_color: "#141414"
-    theme_color: "#141414"
+    background_color: "#EAEFE6"
+    theme_color: "#18211C"
   windows:
     generate: true
     icon_size: 256
@@ -121,12 +121,12 @@ flutter_launcher_icons:
 # The native splash matches the Flutter splash exactly, so the handover from
 # the OS screen to the app is invisible.
 flutter_native_splash:
-  color: "#141414"
-  image: "assets/icons/splash.png"
+  color: "#EAEFE6"
+  image: "assets/icons/splash_orb.png"
   android_12:
-    color: "#141414"
-    image: "assets/icons/icon_foreground.png"
-    icon_background_color: "#141414"
+    color: "#EAEFE6"
+    image: "assets/icons/splash_orb.png"
+    icon_background_color: "#EAEFE6"
   android: true
   ios: true
   web: true