Add terraform state registry (#36710)

Adds terraform/opentofu state registry with locking. Implements: https://github.com/go-gitea/gitea/issues/33644. I also checked [encrypted state](https://opentofu.org/docs/language/state/encryption), it works out of the box.

Docs PR: https://gitea.com/gitea/docs/pulls/357

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Co-authored-by: Andras Elso <elso.andras@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

templates/package/view.tmpl

@@ -3,12 +3,14 @@
 <div role="main" aria-label="{{.Title}}" class="page-content organization packages">
 	{{template "org/header" .}}
 	<div class="ui container">
+		{{template "base/alert" .}}
 		{{template "package/shared/view" .}}
 	</div>
 </div>
 {{else}}
 <div role="main" aria-label="{{.Title}}" class="page-content user profile packages">
 	<div class="ui container">
+		{{template "base/alert" .}}
 		<div class="ui stackable grid">
 			<div class="ui four wide column">
 				{{template "shared/user/profile_big_avatar" .}}