feat(ui): standardize design system, modals, sidebar, and form inputs

- Implement unified design system tokens, 10px radius, and IRANSans typography
- Modernize sidebar with Gemini-style collapsed expander, square 1:1 items, and elevated profile flyout
- Standardize all modal dialogs with 16px padding, fixed header/footer, 16px medium title, and sticky bottom actions
- Refactor DealFormView and CustomFieldsSection with standard UiField, UiInput, and UiSelect components
- Add draggable bottom-left QuickCreate floating action button

apps/web/src/components/NoteAiSuggestionPanel.vue

@@ -231,7 +231,7 @@ function formatPayloadSummary(value: NoteAiPayloadDto | null) {
   margin-top: 0.75rem;
   padding: 0.75rem 0.85rem;
   border: 1px dashed var(--accent);
-  border-radius: 12px;
+  border-radius: var(--radius);
   background: rgba(255, 255, 255, 0.65);
   display: grid;
   gap: 0.6rem;
@@ -281,7 +281,7 @@ header {
 input[type='text'],
 textarea {
   border: 1px solid var(--line);
-  border-radius: 10px;
+  border-radius: var(--radius);
   padding: 0.55rem 0.7rem;
   font: inherit;
   width: 100%;