feat(web): per-mutation success/error toast metadata (#47)

Declare meta on all 18 mutation hooks: meta.successMessage (toast.* key)
on every discrete user action, meta.suppressErrorToast where the consuming
component already renders the error inline. Corrected useUpdateFieldDefinition
to suppress (FieldForm renders update.isError as form.rejected inline).

Add an RTL+MSW integration test wiring the real MutationCache via
makeQueryClient() + ToastRegion: success toast, catch-all error toast, and
suppressed-no-toast. Tidy the toast Close aria-label to t("common.close")
with en/sv parity.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/api/queries.ts

@@ -122,6 +122,7 @@ export function useLogin() {
       }
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["me"] }),
+    meta: { suppressErrorToast: true },
   });
 }
 
@@ -185,6 +186,7 @@ export function useCreateObject() {
       return data;
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["objects"] }),
+    meta: { successMessage: "toast.created", suppressErrorToast: true },
   });
 }
 
@@ -204,6 +206,7 @@ export function useUpdateObject() {
       void qc.invalidateQueries({ queryKey: ["objects"] });
       void qc.invalidateQueries({ queryKey: ["object", id] });
     },
+    meta: { successMessage: "toast.saved", suppressErrorToast: true },
   });
 }
 
@@ -229,6 +232,7 @@ export function useSetFields() {
     onSuccess: (_d, { id }) => {
       void qc.invalidateQueries({ queryKey: ["object", id] });
     },
+    meta: { suppressErrorToast: true },
   });
 }
 
@@ -244,6 +248,7 @@ export function useDeleteObject() {
       if (response.status !== 204) throw new Error("delete failed");
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["objects"] }),
+    meta: { successMessage: "toast.deleted", suppressErrorToast: true },
   });
 }
 
@@ -276,6 +281,7 @@ export function useCreateVocabulary() {
       return data;
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["vocabularies"] }),
+    meta: { successMessage: "toast.created", suppressErrorToast: true },
   });
 }
 
@@ -301,6 +307,7 @@ export function useAddTerm() {
     },
     onSuccess: (_result, { vocabularyId }) =>
       qc.invalidateQueries({ queryKey: ["terms", vocabularyId] }),
+    meta: { successMessage: "toast.created", suppressErrorToast: true },
   });
 }
 
@@ -325,6 +332,7 @@ export function useCreateAuthority() {
     },
     onSuccess: (_result, { kind }) =>
       qc.invalidateQueries({ queryKey: ["authorities", kind] }),
+    meta: { successMessage: "toast.created", suppressErrorToast: true },
   });
 }
 
@@ -376,6 +384,7 @@ export function useCreateFieldDefinition() {
       return data;
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["field-definitions"] }),
+    meta: { successMessage: "toast.created", suppressErrorToast: true },
   });
 }
 
@@ -405,6 +414,7 @@ export function useSetVisibility() {
       void qc.invalidateQueries({ queryKey: ["object", id] });
       void qc.invalidateQueries({ queryKey: ["objects"] });
     },
+    meta: { successMessage: "toast.published", suppressErrorToast: true },
   });
 }
 
@@ -431,6 +441,7 @@ export function useUpdateTerm() {
       if (response.status !== 204) throw new Error("update term failed");
     },
     onSuccess: (_d, { vocabularyId }) => qc.invalidateQueries({ queryKey: ["terms", vocabularyId] }),
+    meta: { successMessage: "toast.saved" },
   });
 }
 
@@ -447,6 +458,7 @@ export function useDeleteTerm() {
       if (response.status !== 204) throw new Error("delete term failed");
     },
     onSuccess: (_d, { vocabularyId }) => qc.invalidateQueries({ queryKey: ["terms", vocabularyId] }),
+    meta: { successMessage: "toast.deleted", suppressErrorToast: true },
   });
 }
 
@@ -463,6 +475,7 @@ export function useRenameVocabulary() {
       if (response.status !== 204) throw new Error("rename failed");
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["vocabularies"] }),
+    meta: { successMessage: "toast.renamed", suppressErrorToast: true },
   });
 }
 
@@ -479,6 +492,7 @@ export function useDeleteVocabulary() {
       if (response.status !== 204) throw new Error("delete vocabulary failed");
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["vocabularies"] }),
+    meta: { successMessage: "toast.deleted", suppressErrorToast: true },
   });
 }
 
@@ -504,6 +518,7 @@ export function useUpdateAuthority() {
       if (response.status !== 204) throw new Error("update authority failed");
     },
     onSuccess: (_d, { kind }) => qc.invalidateQueries({ queryKey: ["authorities", kind] }),
+    meta: { successMessage: "toast.saved" },
   });
 }
 
@@ -520,6 +535,7 @@ export function useDeleteAuthority() {
       if (response.status !== 204) throw new Error("delete authority failed");
     },
     onSuccess: (_d, { kind }) => qc.invalidateQueries({ queryKey: ["authorities", kind] }),
+    meta: { successMessage: "toast.deleted", suppressErrorToast: true },
   });
 }
 
@@ -546,6 +562,7 @@ export function useUpdateFieldDefinition() {
       if (response.status !== 204) throw new Error("update field failed");
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["field-definitions"] }),
+    meta: { successMessage: "toast.saved", suppressErrorToast: true },
   });
 }
 
@@ -562,5 +579,6 @@ export function useDeleteFieldDefinition() {
       if (response.status !== 204) throw new Error("delete field failed");
     },
     onSuccess: () => qc.invalidateQueries({ queryKey: ["field-definitions"] }),
+    meta: { successMessage: "toast.deleted", suppressErrorToast: true },
   });
 }