Added detailed documentation: ARCHITECTURE.md, CONVENTIONS.md, GLOSSARY.md, and copilot-instructions.md for Mango.Nop.Core, Data, and Services. Updated/added README.md files for all Mango.Nop libraries and the FruitBank nopCommerce plugin, clarifying structure, key types, and usage. Switched appsettings.json connection string from production to development database. These changes improve developer onboarding and enforce architectural consistency.
Replaced hardcoded Debug paths in all .csproj files with $(Configuration) for AyCode and FruitBank DLL references, enabling correct DLL resolution for any build configuration. Switched appsettings.json connection string to use the FruitBank_PROD database. Added a null check for StockTaking in StockSignalREndpointServer.cs to prevent possible null reference exceptions. Noted some encoding issues in .csproj comments and copyright fields. No other functional changes.