Add SqlServerDsc resource to sql-developer plugin for deployment and configuration

Fix sql-developer hooks.json schema

Add shields.io badges to sql-developer README

Update CHANGELOG and add changelog convention to CLAUDE.md

Add sql-developer plugin for T-SQL development

Bump versions for all plugins

Update CHANGELOG with hook fixes

Fix hook scripts and standardize across all plugins

Add shields.io badges to powershell-developer README

Add CHANGELOG.md and update CLAUDE.md

Add powershell-developer plugin

Add demo image to root README

Add demo.png

Update usage examples to show inline task format

Fix slash command format in all READMEs