feat: Support page with budget transparency (replaces About)

site/src/layouts/Base.astro

@@ -263,9 +263,9 @@ try {
               class="hidden sm:inline text-xs text-zinc-500 hover:text-white transition-colors px-1"
             >Ideas</a>
             <a
-              href={`${baseUrl}about/`}
+              href={`${baseUrl}support/`}
               class="hidden sm:inline text-xs text-zinc-500 hover:text-white transition-colors px-1"
-            >About</a>
+            >Support</a>
             <!-- Settings link — hidden until logged in -->
             <a
               id="nav-settings"
@@ -333,9 +333,9 @@ try {
           <a href={`${baseUrl}ideas/`}
              class="text-sm px-2 py-1.5 rounded hover:bg-zinc-800 transition-colors"
              style="color: var(--text-4)">Ideas</a>
-          <a href={`${baseUrl}about/`}
+          <a href={`${baseUrl}support/`}
              class="text-sm px-2 py-1.5 rounded hover:bg-zinc-800 transition-colors"
-             style="color: var(--text-4)">About</a>
+             style="color: var(--text-4)">Support</a>
           <a href={`${baseUrl}settings/`}
              class="text-sm px-2 py-1.5 rounded hover:bg-zinc-800 transition-colors"
              style="color: var(--text-4)">Settings</a>