fix(web): calm hero flash, lead detail, and scope sources

Keep the dashboard backdrop out of flow on first paint, clamp long lead notes, scroll the quick-actions rail, return to the lead board, and only list import sources that exist in this environment.

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

apps/web/src/views/LeadDetailView.vue

@@ -447,7 +447,7 @@ onBeforeUnmount(() => narrowMq?.removeEventListener('change', syncNarrow));
     <a-col :span="24">
       <a-flex justify="space-between" align="center" wrap="wrap" :gap="token.marginSM">
         <a-space :size="12" align="start">
-          <RouterLink :to="{ name: 'leads' }" custom v-slot="{ navigate }">
+          <RouterLink :to="{ name: 'leads-board' }" custom v-slot="{ navigate }">
             <a-button @click="navigate">
               <template #icon><ArrowLeftOutlined /></template>
             </a-button>
@@ -696,7 +696,11 @@ onBeforeUnmount(() => narrowMq?.removeEventListener('change', syncNarrow));
                       <div v-for="(addr, i) in lead.addresses" :key="i">{{ addr }}</div>
                     </a-descriptions-item>
                     <a-descriptions-item v-if="lead.notes" label="یادداشت" :span="2">
-                      {{ lead.notes }}
+                      <a-typography-paragraph
+                        :ellipsis="{ rows: 4, expandable: true, symbol: 'بیشتر' }"
+                        :content="lead.notes"
+                        style="margin-bottom: 0"
+                      />
                     </a-descriptions-item>
                   </a-descriptions>
                 </template>
@@ -804,7 +808,11 @@ onBeforeUnmount(() => narrowMq?.removeEventListener('change', syncNarrow));
 
             <a-col :xs="24" :lg="7" :xl="6">
               <a-affix v-if="!narrow" :offset-top="24">
-                <a-card title="اقدامات سریع" :bordered="false">
+                <a-card
+                  title="اقدامات سریع"
+                  :bordered="false"
+                  :body-style="{ maxHeight: 'calc(100vh - 140px)', overflowY: 'auto' }"
+                >
                   <a-form layout="vertical">
                     <a-divider orientation="right">پیامک</a-divider>
                     <a-button