Import rpm.lair.cafe SPA from lair/mistralrs-package/ui @34a28b5

Dedicated repo for the RPM repository web UI, moved out of the
mistralrs-package repo now that multiple package repos publish to
rpm.lair.cafe. Includes an adapted deploy workflow (SPA at repo root).

src/types/packages.ts

@@ -0,0 +1,30 @@
+export interface ChangelogEntry {
+  author: string;
+  date: number;
+  text: string;
+}
+
+export type Channel = "stable" | "unstable";
+
+export interface PackageVersion {
+  name: string;
+  version: string;
+  release: string;
+  arch: string;
+  summary: string;
+  size: number;
+  buildTime: number;
+  rpmFilename: string;
+  changelog: ChangelogEntry[];
+  channel: Channel;
+  baseUrl: string;
+  // Fedora releasever ("43", "44", ...) — attached at fetch time from the
+  // tree each manifest was loaded from (manifests are per-releasever).
+  releasever: string;
+}
+
+export interface PackagesManifest {
+  generated: string;
+  baseUrl: string;
+  packages: PackageVersion[];
+}