Add db migration and DNS dmarc entries

app/static/app.css

@@ -785,6 +785,7 @@ button {
 }
 
 .dw-domain-summary-section,
+.dw-domain-dns-section,
 .dw-domain-main-grid,
 .dw-domain-lower-grid,
 .dw-reports-section {
@@ -1139,6 +1140,78 @@ button {
   grid-template-columns: repeat(3, minmax(0, 1fr));
 }
 
+.dw-section-heading {
+  align-items: center;
+  display: flex;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 16px;
+}
+
+.dw-section-heading .dw-panel-title {
+  margin-bottom: 0;
+}
+
+.dw-dns-grid {
+  display: grid;
+  gap: 16px;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
+
+.dw-dns-panel {
+  background: var(--dw-surface);
+  border: 1px solid var(--dw-border);
+  min-width: 0;
+  padding: 16px;
+}
+
+.dw-policy-chip-row {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin: 10px 0;
+}
+
+.dw-dns-record,
+.dw-dns-record-list code {
+  background: var(--dw-surface-low);
+  border: 1px solid var(--dw-border-soft);
+  color: var(--dw-text);
+  display: block;
+  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
+  font-size: 12px;
+  line-height: 18px;
+  overflow-wrap: anywhere;
+  padding: 10px;
+}
+
+.dw-dns-record-list {
+  display: grid;
+  gap: 8px;
+}
+
+.dw-dns-record-list strong {
+  display: block;
+  font-size: 12px;
+  line-height: 18px;
+  margin-bottom: 4px;
+}
+
+.dw-dns-errors {
+  display: grid;
+  gap: 6px;
+  margin-top: 12px;
+}
+
+.dw-dns-errors span {
+  background: var(--dw-warning-soft);
+  border: 1px solid #fde68a;
+  color: var(--dw-warning);
+  font-size: 12px;
+  line-height: 18px;
+  padding: 8px 10px;
+}
+
 .dw-panel-title {
   color: var(--dw-text);
   font-size: 20px;
@@ -1289,6 +1362,7 @@ button {
 
   .dw-domain-main-grid,
   .dw-domain-lower-grid,
+  .dw-dns-grid,
   .dw-settings-layout,
   .dw-settings-board,
   .dw-inbox-row {