feat(storm-intel): Phase 2 — storm-sourced lead generation flow

When a canvasser taps "Create Lead from Zone" in the Storm Intel detail drawer,
router state carries the storm context into CreateLeadPage:

- CreateLeadPage reads stormSource from location.state; initialises the form with
  city=Plano, state=TX, leadSource=Door Knock, urgency=high for significant/severe
  storms, and a pre-filled notes field with zone name, hail size, and date
- Amber storm banner renders below the page header showing zone name, hail size,
  and a note that urgency was auto-set; dismissible with X
- stormSource is saved on the lead object via the existing addLead spread
- LeadsListPage LeadCard shows an amber "Storm Zone" badge when lead.stormSource exists
- KanbanCard footer shows a compact amber "Storm" label for storm-sourced leads

src/pages/StormIntelPage.jsx

@@ -254,7 +254,17 @@ const StormDetailDrawer = ({ storm, open, onClose, onFlyTo }) => {
     const dateLabel = new Date(storm.date).toLocaleDateString('en-US', { weekday: 'short', month: 'long', day: 'numeric', year: 'numeric' });
 
     const handleCreateLead = () => {
-        navigate('/emp/fa/leads/new');
+        navigate('/emp/fa/leads/new', {
+            state: {
+                stormSource: {
+                    id:          storm.id,
+                    date:        storm.date,
+                    areaName:    storm.areaName,
+                    maxHailSize: storm.maxHailSize,
+                    severity:    storm.severity,
+                },
+            },
+        });
     };
 
     const handleViewInDispatch = () => {