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/Marketing/Website/Website Build Suggestions - Grok Build.md

@@ -12,7 +12,7 @@
 - Products (or Solutions)
   - TallyFlow Core
   - TallyFlow Capture
-  - TallyFlow IoT
+  - TallyFlow Edge
   - TallyFlow Print
 - Use Cases / Solutions
 - Case Studies
@@ -76,7 +76,7 @@
 - Make the Capture product page the strongest right now (it has the most supporting content)
 - Ensure mobile experience is excellent (many use cases are field-based)
 - Include clear CTAs on every page: “Request Demo” and “Start Free Trial”
-- Plan for future expansion into Core, IoT, and Print (keep navigation flexible)
+- Plan for future expansion into Core, Edge, and Print (keep navigation flexible)
 - Use consistent tagging/categorization language across the site
 
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