feat: Add interest form endpoint and fix lead parsing

- Updated to check https://hoaledgeriq.com/api/leads
- Fixed JSON parsing (uses 'leads' key not 'submissions')
- Added proper handling for interest form fields
- Notifications now include first name, last name, org
- Detected 5 historical interest form leads
- Both endpoints now fully functional

agents/sales-lead/state.json

@@ -9,7 +9,7 @@
     6,
     5
   ],
-  "last_check": "2026-04-08T08:30:54.751282",
+  "last_check": "2026-04-08T10:30:23.552271",
   "status": "active",
   "notes": "Hourly monitoring enabled. Next check in 60 minutes.",
   "processed_roi": [
@@ -21,5 +21,11 @@
     6,
     5
   ],
-  "processed_interest": []
+  "processed_interest": [
+    5,
+    4,
+    3,
+    2,
+    1
+  ]
 }