release: v3.3.0 — platform hardening & admin unification (Track F.1–F.8)

Plugin visibility control, UI/UX fixes, unified admin panel,
database-backed settings, and security hardening.

Highlights:
- ENABLED_PLUGINS env var for plugin visibility (F.1)
- Admin designation via ADMIN_EMAILS (F.4a)
- Master key scope control (F.4b)
- Panel unification + settings from UI (F.4c)
- exec() removal, shell injection fix, bcrypt migration (F.8)
- 5 new test suites

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

core/templates/dashboard/oauth-clients/list.html

@@ -212,8 +212,8 @@
                     required
                     rows="3"
                     class="w-full bg-gray-50 dark:bg-gray-700 border border-gray-300 dark:border-gray-600 rounded-lg px-4 py-2 text-gray-900 dark:text-white focus:ring-2 focus:ring-primary-500 focus:border-transparent"
-                    placeholder="https://example.com/callback
https://app.example.com/oauth/callback"
-                ></textarea>
+                >https://claude.ai/api/mcp/auth_callback
+https://claude.com/api/mcp/auth_callback</textarea>
                 <p class="text-xs text-gray-500 mt-1">
                     {% if lang == 'fa' %}هر آدرس را در یک خط جداگانه وارد کنید{% else %}Enter one URI per line{% endif %}
                 </p>
@@ -227,11 +227,11 @@
                         <span class="text-sm text-gray-700 dark:text-gray-300">read</span>
                     </label>
                     <label class="flex items-center gap-2">
-                        <input type="checkbox" name="scopes" value="write" class="rounded bg-gray-700 border-gray-600 text-primary-500">
+                        <input type="checkbox" name="scopes" value="write" checked class="rounded bg-gray-700 border-gray-600 text-primary-500">
                         <span class="text-sm text-gray-700 dark:text-gray-300">write</span>
                     </label>
                     <label class="flex items-center gap-2">
-                        <input type="checkbox" name="scopes" value="admin" class="rounded bg-gray-700 border-gray-600 text-primary-500">
+                        <input type="checkbox" name="scopes" value="admin" checked class="rounded bg-gray-700 border-gray-600 text-primary-500">
                         <span class="text-sm text-gray-700 dark:text-gray-300">admin</span>
                     </label>
                 </div>