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/person-profile/ProfileEmptyState.vue

@@ -119,7 +119,7 @@ withDefaults(
 h3 {
   margin: 0;
   font-size: 1.08rem;
-  font-weight: 800;
+  font-weight: 600;
   color: #1e2937;
 }
 

apps/web/src/components/person-profile/ProfileMoreMenu.vue

@@ -139,7 +139,7 @@ function onSelect(key: string) {
   height: 38px;
   border: 0;
   background: #fff;
-  border-radius: 12px;
+  border-radius: var(--radius);
   display: grid;
   place-items: center;
   color: #334155;
@@ -169,7 +169,7 @@ function onSelect(key: string) {
   list-style: none;
   width: 220px;
   background: #fff;
-  border-radius: 14px;
+  border-radius: var(--radius);
   box-shadow: 0 16px 40px rgba(15, 23, 42, 0.16);
   display: flex;
   flex-direction: column;
@@ -187,7 +187,7 @@ function onSelect(key: string) {
   box-sizing: border-box;
   margin: 0;
   border: 0;
-  border-radius: 10px;
+  border-radius: var(--radius);
   background: transparent;
   color: #0f172a;
   font: inherit;