Rename product TallyFlow IoT → TallyFlow Edge across vault

Update product naming in docs, marketing, architecture, use cases,
and capabilities materials. Rename related notes, screenshot folder,
and marketing image filenames. Keep git/repo identifiers (e.g.
tallyflow-iot) and generic industry IoT language unchanged.

TallyFlow/Product/Code Reviews/tallyflow-web.md

@@ -10,7 +10,7 @@
 
 ## Key Areas to Investigate
 - Asset / Zone management
-- RFID / IoT integration points
+- RFID / Edge integration points
 - Reporting & exports
 - User workflows (receiving, movement, printing)
 - ERP integration surface (API and webhooks)
@@ -26,4 +26,4 @@
   - Reporting on zone durations, events, zone categories (`ReportZoneDurations.vue`, etc.)
   - Map-based visualization (`Map.vue`)
 - **Tech Notes**: Uses Leaflet for maps, Chart.js for reports, Vuetify for UI. Strong emphasis on ERP-adjacent data flows (imports, reports, exceptions).
-- **Next**: Review API layer and shared components for integration patterns (RFID, printing, IoT).
+- **Next**: Review API layer and shared components for integration patterns (RFID, printing, Edge).