Migrate module path from kyle/ to mc/ org

All import paths updated to git.wntrmute.dev/mc/. Bumps mcdsl to v1.2.0.

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

PROGRESS.md

@@ -712,7 +712,7 @@ Lint fix:
 entry points with cobra subcommands.
 
 **Changes:**
-- `go.mod`: module `git.wntrmute.dev/kyle/mcr`, Go 1.25, cobra dependency
+- `go.mod`: module `git.wntrmute.dev/mc/mcr`, Go 1.25, cobra dependency
 - Directory skeleton: `cmd/mcrsrv/`, `cmd/mcr-web/`, `cmd/mcrctl/`,
   `internal/`, `proto/mcr/v1/`, `gen/mcr/v1/`, `web/templates/`,
   `web/static/`, `deploy/docker/`, `deploy/examples/`, `deploy/scripts/`,