refactor(web/api): errCode + errMessage helpers; 41 sites migrated (W1)

web/src/routes/admin/users/+page.svelte

@@ -16,6 +16,7 @@
     type AdminInvite,
     type CreateUserInput
   } from '$lib/api/admin';
+  import { errCode } from '$lib/api/errors';
 
   const client = useQueryClient();
 
@@ -62,11 +63,11 @@
       await client.invalidateQueries({ queryKey: qk.adminUsers() });
       showToast(u.is_admin ? `${u.username} is no longer an admin.` : `${u.username} is now an admin.`);
     } catch (e: unknown) {
-      const code = (e as { code?: string })?.code;
+      const code = errCode(e);
       if (code === 'last_admin') {
         showToast(`Can't remove the last admin — promote someone else first.`);
       } else {
-        showToast(`Action failed: ${code ?? 'unknown'}`);
+        showToast(`Action failed: ${code}`);
       }
     } finally {
       saving = false;
@@ -92,8 +93,7 @@
       createForm = { username: '', password: '', confirmPassword: '', display_name: '', is_admin: false };
       showToast('User created.');
     } catch (e: unknown) {
-      const code = (e as { code?: string })?.code;
-      showToast(createUserErrorMessage(code));
+      showToast(createUserErrorMessage(errCode(e)));
     } finally {
       saving = false;
     }
@@ -117,11 +117,11 @@
       showToast(`Deleted ${confirmDeleteTarget.username}.`);
       confirmDeleteTarget = null;
     } catch (e: unknown) {
-      const code = (e as { code?: string })?.code;
+      const code = errCode(e);
       if (code === 'last_admin') {
         showToast(`Can't delete the last admin — promote someone else first.`);
       } else {
-        showToast(`Delete failed: ${code ?? 'unknown'}`);
+        showToast(`Delete failed: ${code}`);
       }
     } finally {
       saving = false;
@@ -143,11 +143,11 @@
       resetPasswordValue = '';
       resetPasswordConfirm = '';
     } catch (e: unknown) {
-      const code = (e as { code?: string })?.code;
+      const code = errCode(e);
       if (code === 'password_too_short') {
         showToast('Password must be at least 8 characters.');
       } else {
-        showToast(`Reset failed: ${code ?? 'unknown'}`);
+        showToast(`Reset failed: ${code}`);
       }
     } finally {
       saving = false;
@@ -163,7 +163,7 @@
         ? `Auto-approve disabled for ${u.username}.`
         : `Auto-approve enabled for ${u.username}.`);
     } catch (e: unknown) {
-      showToast(`Toggle failed: ${(e as { code?: string })?.code ?? 'unknown'}`);
+      showToast(`Toggle failed: ${errCode(e)}`);
     } finally {
       saving = false;
     }
@@ -176,7 +176,7 @@
       await client.invalidateQueries({ queryKey: qk.adminInvites() });
       showToast('Invite generated. Copy the token from the list below.');
     } catch (e: unknown) {
-      showToast(`Generate failed: ${(e as { code?: string })?.code ?? 'unknown'}`);
+      showToast(`Generate failed: ${errCode(e)}`);
     } finally {
       saving = false;
     }
@@ -189,7 +189,7 @@
       await client.invalidateQueries({ queryKey: qk.adminInvites() });
       showToast('Invite revoked.');
     } catch (e: unknown) {
-      showToast(`Revoke failed: ${(e as { code?: string })?.code ?? 'unknown'}`);
+      showToast(`Revoke failed: ${errCode(e)}`);
     } finally {
       saving = false;
     }