Add s3tables shell and admin UI (#8172)

* Add shared s3tables manager

* Add s3tables shell commands

* Add s3tables admin API

* Add s3tables admin UI

* Fix admin s3tables namespace create

* Rename table buckets menu

* Centralize s3tables tag validation

* Reuse s3tables manager in admin

* Extract s3tables list limit

* Add s3tables bucket ARN helper

* Remove write middleware from s3tables APIs

* Fix bucket link and policy hint

* Fix table tag parsing and nav link

* Disable namespace table link on invalid ARN

* Improve s3tables error decode

* Return flag parse errors for s3tables tag

* Accept query params for namespace create

* Bind namespace create form data

* Read s3tables JS data from DOM

* s3tables: allow empty region ARN

* shell: pass s3tables account id

* shell: require account for table buckets

* shell: use bucket name for namespaces

* shell: use bucket name for tables

* shell: use bucket name for tags

* admin: add table buckets links in file browser

* s3api: reuse s3tables tag validation

* admin: harden s3tables UI handlers

* fix admin list table buckets

* allow admin s3tables access

* validate s3tables bucket tags

* log s3tables bucket metadata errors

* rollback table bucket on owner failure

* show s3tables bucket owner

* add s3tables iam conditions

* Add s3tables user permissions UI

* Authorize s3tables using identity actions

* Add s3tables permissions to user modal

* Disambiguate bucket scope in user permissions

* Block table bucket names that match S3 buckets

* Pretty-print IAM identity JSON

* Include tags in s3tables permission context

* admin: refactor S3 Tables inline JavaScript into a separate file

* s3tables: extend IAM policy condition operators support

* shell: use LookupEntry wrapper for s3tables bucket conflict check

* admin: handle buildBucketPermissions validation in create/update flows

weed/admin/view/layout/layout.templ

@@ -163,6 +163,11 @@ templ Layout(c *gin.Context, content templ.Component) {
                                             <i class="fas fa-cube me-2"></i>Buckets
                                         </a>
                                     </li>
+                                    <li class="nav-item">
+                                        <a class="nav-link py-2" href="/object-store/s3tables/buckets">
+                                            <i class="fas fa-table me-2"></i>Table Buckets
+                                        </a>
+                                    </li>
                                     <li class="nav-item">
                                         <a class="nav-link py-2" href="/object-store/users">
                                             <i class="fas fa-users me-2"></i>Users
@@ -362,6 +367,7 @@ templ Layout(c *gin.Context, content templ.Component) {
     <!-- Custom JS -->
     <script src="/static/js/admin.js"></script>
     <script src="/static/js/iam-utils.js"></script>
+    <script src="/static/js/s3tables.js"></script>
 </body>
 </html>
 }
@@ -430,4 +436,4 @@ templ LoginForm(c *gin.Context, title string, errorMessage string) {
     <script src="/static/js/bootstrap.bundle.min.js"></script>
 </body>
 </html>
-} 
+}