Add TallyFlow roadmap features and update documentation

- Added Scan & Print (Mobile + Print) and Mobile + IoT integration as roadmap features in Dashboard
- Updated TallyFlow User's Guide with Core integration hub note and Mobile UX details (Material 3, large buttons)
- Enhanced Code Review Notes with Architecture Notes (Core as central hub)
- Updated tallyflow_mobile.md with Roadmap/Integration Opportunities and UX Design sections
- Updated Brochure and Go-to-Market targeting with recent GS1/FSMA Print capabilities
- Added new files: tallyflow-print.md review, User's Guide, and Assets icons

TallyFlow/Assets/Icons/Index.md

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+# TallyFlow Icons & Assets
+
+## Icons
+
+- **TallyFlow Logo (Wordmark)**  
+  `TallyFlow-Logo.png`  
+  Full horizontal logo with three-color leaf icon + "TALLYFLOW" text. Primary branding asset for website headers, marketing materials, and social posts.
+
+- **TallyFlow Product Icon (Main Logo)**  
+  `TallyFlow-Product-Icon.png`  
+  Three-color sustainability leaf (yellow, blue, green). Primary TallyFlow branding icon for general product use, website, and marketing.
+
+- **TallyFlow Print Icon**  
+  `TallyFlow-Print-Icon.png`  
+  Blue printer with sustainability leaf element. Used for TallyFlow Print module marketing and documentation.
+
+## Structure
+- Place all product/module icons in this folder.
+- Name convention: `TallyFlow-[Product]-Icon.png` or `TallyFlow-Logo.png` for the full wordmark.
+
+## Status / Notes
+- **TallyFlow Mobile**: Currently uses the main `TallyFlow-Product-Icon.png` (no dedicated Mobile icon yet).
+- **TallyFlow IoT**: No icon created yet.
+- **TallyFlow Core** and **TallyFlow Capture**: No dedicated icons yet.
+
+*This index is maintained for easy reference by the daily TallyFlow cron and marketing tasks.*