Rewrite identity and access management

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/trust_center.go

@@ -21,11 +21,11 @@ import (
 	"maps"
 	"time"
 
-	"go.probo.inc/probo/pkg/gid"
-	"go.probo.inc/probo/pkg/page"
 	"github.com/jackc/pgx/v5"
 	"github.com/jackc/pgx/v5/pgconn"
 	"go.gearno.de/kit/pg"
+	"go.probo.inc/probo/pkg/gid"
+	"go.probo.inc/probo/pkg/page"
 )
 
 type (
@@ -41,24 +41,8 @@ type (
 	}
 
 	TrustCenters []*TrustCenter
-
-	ErrTrustCenterNotFound struct {
-		Identifier string
-	}
-
-	ErrTrustCenterAlreadyExists struct {
-		message string
-	}
 )
 
-func (e ErrTrustCenterNotFound) Error() string {
-	return fmt.Sprintf("trust center not found: %q", e.Identifier)
-}
-
-func (e ErrTrustCenterAlreadyExists) Error() string {
-	return e.message
-}
-
 func (tc *TrustCenter) CursorKey(orderBy TrustCenterOrderField) page.CursorKey {
 	switch orderBy {
 	case TrustCenterOrderFieldCreatedAt:
@@ -239,9 +223,7 @@ INSERT INTO trust_centers (
 		var pgErr *pgconn.PgError
 		if errors.As(err, &pgErr) {
 			if pgErr.Code == "23505" && pgErr.ConstraintName == "trust_centers_slug_key" {
-				return &ErrTrustCenterAlreadyExists{
-					message: fmt.Sprintf("trust center with slug %q already exists", tc.Slug),
-				}
+				return ErrResourceAlreadyExists
 			}
 		}
 		return fmt.Errorf("cannot insert trust center: %w", err)