controller v0.269.0: whole restore from the second drive; crash loops stopped; exact image digests; steps judged by their own .felhom.yml (decisions 26-28, R-661 R-666 R-667 R-668 R-664 R-665 R-662, 09 6.4 part 6)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/web/templates/layout.html

@@ -426,6 +426,11 @@
                 fetch('/api/stacks/' + name + '/backup-data').then(function(r) { return r.json(); })
             ]);
             var sections = '';
+            // v0.269.0 (decision 27): a held app whose page says support is informed — keep-data only.
+            var keepOnly = hddResp.ok && hddResp.data && hddResp.data.keep_data_only;
+            if (keepOnly) {
+                sections += '<div class="alert alert-info" style="margin-bottom:.75rem" data-remove-keep-only="true">{{T "layout.remove_keep_data_only"}}</div>';
+            }
             // Section 1: Always removed
             sections += '<div class="modal-section">' +
                 '<strong>{{T "layout.mindig_torlodik"}}</strong>' +
@@ -436,7 +441,7 @@
                 '</ul></div>';
             // Section 2: HDD data
             var hddCheckbox = '';
-            if (hddResp.ok && hddResp.data && hddResp.data.has_hdd_data) {
+            if (!keepOnly && hddResp.ok && hddResp.data && hddResp.data.has_hdd_data) {
                 var hddPaths = '';
                 hddResp.data.hdd_paths.forEach(function(p) {
                     hddPaths += '<div class="modal-hdd-path">' + p.path + ' (' + (p.exists ? p.size_human : '{{T "layout.nem_letezik"}}') + ')</div>';
@@ -451,7 +456,7 @@
             }
             // Section 3: Backup data
             var backupCheckbox = '';
-            if (backupResp.ok && backupResp.data && backupResp.data.has_backups) {
+            if (!keepOnly && backupResp.ok && backupResp.data && backupResp.data.has_backups) {
                 var bkPaths = '';
                 backupResp.data.backup_paths.forEach(function(p) {
                     if (p.exists) bkPaths += '<div class="modal-hdd-path">' + p.path + ' (' + p.size_human + ')</div>';