chore: baseline snapshot before moderation-strictness feature

Repo .git was damaged (refs/ missing, index truncated, object store near-empty).
Repaired via git init (rebuilt refs), stale index preserved as .git/index.corrupt-20260910.bak,
then full worktree committed as a rollback baseline.

templates/user/deactivate.html

@@ -0,0 +1,17 @@
+{{template "base/header" .}}
+<form method="post" id="form">
+  <fieldset class="uk-fieldset">
+    {{ .CSRFTokenHTML }}
+    <legend class="uk-legend">{{t .LangCode "deactivate.title"}}</legend>
+    {{template "base/alert" .}}
+    <div class="uk-margin">
+      {{t .LangCode "deactivate.desc"}}
+      <br>
+      <br>
+      <button type="submit" class="uk-button uk-button-danger g-recaptcha" data-sitekey="{{.RecaptchaSiteKey}}"
+              data-callback="onSubmit">{{t .LangCode "deactivate.confirm"}}
+      </button>
+    </div>
+  </fieldset>
+</form>
+{{template "base/footer" .}}