chore: strip pre-fork version comments across 72 files

Removes standalone "// v0.X.X:" comment lines and inline trailing
version annotations. Keeps version references in config field docs
and compatibility notes where they describe requirements.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/handlers/team_package_settings.go

@@ -1,6 +1,6 @@
 package handlers
 
-// team_package_settings.go — v0.2.0
+// team_package_settings.go
 //
 // Team-admin endpoints for managing team-scoped package settings.
 // These sit in the settings cascade between global (admin) and user.