chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

templates/post-install.tmpl

@@ -0,0 +1,11 @@
+{{template "base/head" .}}
+<div role="main" aria-label="{{.Title}}" class="page-content install post-install tw-h-full">
+	<div class="home tw-text-center tw-h-full tw-flex tw-flex-col tw-justify-center"><!-- the "home" class makes the links green -->
+		<!-- the "cup" has a handler, so move it a little leftward to make it visually in the center -->
+		<div class="tw-ml-[-30px]"><img width="160" src="{{AssetUrlPrefix}}/img/loading.png" alt aria-hidden="true"></div>
+		<div class="tw-my-[2em] tw-text-[18px]">
+			<a id="goto-after-install" href="{{AppSubUrl}}{{Iif .IsAccountCreated "/user/login" "/user/sign_up"}}">{{ctx.Locale.Tr "install.installing_desc"}}</a>
+		</div>
+	</div>
+</div>
+{{template "base/footer" .}}