Drop docker-compose from dev workflow; run full build/test and Aspire locally

dev-build.sh now builds the whole solution and runs .NET + Jest unit
tests instead of restarting docker-compose services. readme documents
the aspire run command for local orchestration; slnx solution-items
reference to the removed docker-compose.yml is gone.

MicCheck.slnx

@@ -3,7 +3,6 @@
     <File Path=".editorconfig" />
     <File Path=".gitignore" />
     <File Path="CLAUDE.md" />
-    <File Path="docker-compose.yml" />
     <File Path="readme.md" />
   </Folder>
   <Folder Name="/src/">