refactor: remove unused Pinia stores and related code

- Deleted the layout-store, profiles-store, and index.ts files from the Pinia store setup.
- Removed the zod-sync script as it is no longer needed.
- Cleaned up the tsconfig.json file by removing unnecessary references.
- Updated the login logic in the profiles package to use polling for login results instead of in-process waiters.
- Added validation methods for personal data and profile parameters.
- Introduced new tests for validation logic in profiles and registration packages.
- Enhanced email normalization and validation in the registration package.

registration/validation_test.go

@@ -0,0 +1,26 @@
+package registration
+
+import "testing"
+
+func TestNormalizeEmail(t *testing.T) {
+	got, err := normalizeEmail("  Alice@Example.com  ")
+	if err != nil {
+		t.Fatalf("normalizeEmail() returned unexpected error: %v", err)
+	}
+	if got != "alice@example.com" {
+		t.Fatalf("normalizeEmail() = %q, want %q", got, "alice@example.com")
+	}
+
+	if _, err := normalizeEmail(" "); err == nil {
+		t.Fatal("normalizeEmail() should reject empty email")
+	}
+}
+
+func TestPasswordResetConfirmParamsValidate(t *testing.T) {
+	if err := (&PasswordResetConfirmParams{Password: "weak"}).Validate(); err == nil {
+		t.Fatal("Validate() should reject weak password")
+	}
+	if err := (&PasswordResetConfirmParams{Password: "validpass"}).Validate(); err != nil {
+		t.Fatalf("Validate() returned unexpected error: %v", err)
+	}
+}