Migrate module path from kyle/ to mc/ org

All import paths updated from git.wntrmute.dev/kyle/mcias to
git.wntrmute.dev/mc/mcias to match the Gitea organization.
Includes main module and clients/go submodule.

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

cmd/mciasdb/pgcreds.go

@@ -6,8 +6,8 @@ import (
 	"fmt"
 	"os"
 
-	"git.wntrmute.dev/kyle/mcias/internal/crypto"
-	"git.wntrmute.dev/kyle/mcias/internal/db"
+	"git.wntrmute.dev/mc/mcias/internal/crypto"
+	"git.wntrmute.dev/mc/mcias/internal/db"
 )
 
 func (t *tool) runPGCreds(args []string) {