feat: refresh dashboard design with fantasy RPG aesthetic

- Replace Inter font with Cinzel (headings) + Jura (body)
- Deepen dark background palette with atmospheric gradient orbs
- Add subtle noise texture overlay for depth
- Refine glass cards with animated gradient border glow on hover
- Sharpen accent colors: violet #8b5cf6 + cyan #22d3ee
- Improve button tactile feedback and shadow system
- Add k8s manifests for minikube local deployment

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

k8s/02-secrets.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: gmrelay-secrets
+  namespace: gmrelay-test
+type: Opaque
+stringData:
+  POSTGRES_PASSWORD: "TestPassword123"
+  TELEGRAM_BOT_TOKEN: "8641931558:AAGBARuuTZUXX7V3YrtJwN3y_q0NUVkFrqk"
+  TELEGRAM_BOT_USERNAME: "GmRelayTestBot"