feat(versioning): show runtime version and git hash in app footers

apps/admin/src/components/admin-shell.tsx

@@ -4,6 +4,7 @@ import type { ReactNode } from "react"
 
 import { LogoutButton } from "@/app/logout-button"
 import { AdminLocaleSwitcher } from "@/components/admin-locale-switcher"
+import { getBuildInfo } from "@/lib/build-info"
 
 type AdminShellProps = {
   role: Role
@@ -57,6 +58,8 @@ export function AdminShell({
   actions,
   children,
 }: AdminShellProps) {
+  const buildInfo = getBuildInfo()
+
   return (
     <div className="mx-auto flex min-h-screen w-full max-w-7xl gap-8 px-6 py-10">
       <aside className="sticky top-0 hidden h-fit w-64 shrink-0 space-y-4 lg:block">
@@ -111,6 +114,10 @@ export function AdminShell({
         </header>
 
         {children}
+
+        <footer className="border-t border-neutral-200 pt-4 text-xs text-neutral-500">
+          Build v{buildInfo.version} +sha.{buildInfo.sha}
+        </footer>
       </div>
     </div>
   )