Initial server: Deno/Hono backend with auth, CSRF, Hydra consent, and flow proxy

Hono app serving as the login UI and admin panel for Ory Kratos + Hydra.
Handles OIDC consent/login flows, session management, avatar uploads,
and proxies Kratos admin/public APIs.

ui/public/favicon.svg

@@ -0,0 +1,13 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <circle cx="16" cy="16" r="8" fill="#4F46E5"/>
+  <g stroke="#4F46E5" stroke-width="2.5" stroke-linecap="round">
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+  </g>
+</svg>