feat: adapt pullfrog for gitea + ollama

utils/gitea.ts

@@ -0,0 +1,23 @@
+import { Gitea } from "@go-gitea/sdk.js";
+import type { GiteaEndpoints } from "@go-gitea/sdk.js";
+
+export { Gitea };
+export type { GiteaEndpoints };
+
+// The SDK's ChangedFile type omits `patch`. Gitea does return it; cast to this when needed.
+export interface ChangedFileWithPatch {
+  filename?: string;
+  status?: string;
+  additions?: number;
+  deletions?: number;
+  changes?: number;
+  patch?: string;
+  [key: string]: unknown;
+}
+
+export function createGiteaClient(): Gitea {
+  const baseUrl = (process.env.GITEA_URL ?? "https://git.shockvpn.com").replace(/\/$/, "");
+  const token = process.env.BOT_TOKEN;
+  if (!token) throw new Error("BOT_TOKEN environment variable is required");
+  return new Gitea({ baseUrl, auth: token });
+}