feat(render): add azldev component render command (#81)

Adds `azldev component render` to render post-overlay specs and sidecar files for check-in.

Processing uses a 3-phase pipeline:

1. Parallel source preparation (clone + overlay + synthetic git)
2. Batch mock processing (rpmautospec + spectool via embedded Python script)
3. Parallel finishing (file filtering + copy to output)

Author: dmcilvaney

docs/user/reference/cli/azldev_component.md

@@ -29,4 +29,5 @@ components defined in the project configuration.`,
 	listOnAppInit(app, cmd)
 	prepareOnAppInit(app, cmd)
 	queryOnAppInit(app, cmd)
+	renderOnAppInit(app, cmd)
 }