fix(NEW-3): expand _FEED_LABELS from 6 to 14 node types

Live feed only showed AuditReport, EnforcementAction, RegulatoryOrder,
ElectoralBond, Contract, VigilanceCircular. Politician updates, Company
registrations, CourtCases, Tenders, NGO actions, PressReleases,
InsolvencyOrders, and SanctionedEntity records never appeared in the
feed even when the graph was fully populated.

api/main.py

@@ -183,9 +183,13 @@ def get_stats():
     return result
 
 
+# NEW-3 FIX: expanded from 6 to 14 types -- Politician, Company, CourtCase etc
+# were never appearing in the live feed even when the graph was fully populated
 _FEED_LABELS = [
     "AuditReport", "EnforcementAction", "RegulatoryOrder",
     "ElectoralBond", "Contract", "VigilanceCircular",
+    "Politician", "Company", "CourtCase", "Tender",
+    "NGO", "PressRelease", "InsolvencyOrder", "SanctionedEntity",
 ]