Sanitize rich-text paste and allow empty business postal codes.

Strip background/font-family/colors on paste while keeping bold, lists, and font size; treat business address postal code as optional.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/dashboard-ui/src/components/RichTextEditor.module.css

@@ -62,6 +62,21 @@
   letter-spacing: 0.02em;
 }
 
+.toolbar button.codeModeBtn {
+  width: auto;
+  min-width: 28px;
+  padding: 0 8px;
+  gap: 4px;
+  font-size: 11px;
+  font-weight: 600;
+  letter-spacing: 0.02em;
+}
+
+.fontSizeSelect:disabled {
+  opacity: 0.45;
+  cursor: not-allowed;
+}
+
 .fontSizeWrap {
   display: inline-flex;
   align-items: center;
@@ -238,6 +253,35 @@
   pointer-events: none;
 }
 
+.codeEditor {
+  display: block;
+  width: 100%;
+  max-width: 100%;
+  min-width: 0;
+  min-height: 140px;
+  padding: var(--field-padding-y) var(--field-padding-x);
+  border: 0;
+  resize: vertical;
+  outline: none;
+  box-sizing: border-box;
+  background: var(--elevated-surface);
+  color: var(--text-primary);
+  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New',
+    monospace;
+  font-size: 12px;
+  line-height: 1.55;
+  white-space: pre-wrap;
+  overflow-wrap: break-word;
+  word-break: break-word;
+  unicode-bidi: isolate;
+  direction: ltr;
+}
+
+.codeEditor::placeholder {
+  color: var(--text-muted);
+  font-family: var(--font-ui);
+}
+
 .editor > * {
   max-width: 100%;
   box-sizing: border-box;