Add atomic bulk transaction editing with opt-in field changes

web/src/styles.css

@@ -718,6 +718,33 @@ main {
   padding: 17px 23px;
   border-bottom: 1px solid var(--line);
 }
+.bulk-heading-actions,
+.bulk-selection-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+.bulk-toolbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  flex-wrap: wrap;
+  gap: 16px;
+  padding: 17px 23px;
+  border-bottom: 1px solid var(--line);
+  background: #f5faf7;
+}
+.bulk-selection-summary {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+.bulk-selection-summary strong {
+  color: var(--emerald-dark);
+  font-size: 13px;
+}
 .search {
   display: flex;
   align-items: center;
@@ -792,6 +819,29 @@ td small {
 tbody tr:hover {
   background: #fcfefd;
 }
+.transaction-selection {
+  width: 54px;
+  padding: 8px 10px 8px 14px;
+}
+.transaction-select-control {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 30px;
+  min-height: 36px;
+  cursor: pointer;
+}
+.transaction-select-control input {
+  width: 16px;
+  height: 16px;
+  margin: 0;
+  accent-color: var(--emerald);
+  cursor: pointer;
+}
+.transaction-selected,
+.transaction-selected:hover {
+  background: #eef8f3;
+}
 .numeric {
   text-align: right;
 }
@@ -967,6 +1017,38 @@ tbody tr:hover {
   grid-template-columns: 1fr 1fr;
   gap: 18px;
 }
+.bulk-edit-fields,
+.bulk-field-group {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  min-width: 0;
+}
+.bulk-edit-fields {
+  border: 0;
+  padding: 0;
+  margin: 0;
+  gap: 20px;
+}
+.bulk-operation-summary {
+  border: 1px solid var(--line);
+  border-radius: 6px;
+  padding: 16px;
+  background: #f5faf7;
+  overflow-wrap: anywhere;
+}
+.bulk-operation-summary h3 {
+  font-size: 14px;
+}
+.bulk-operation-summary ul {
+  padding-left: 20px;
+  margin: 12px 0;
+  line-height: 1.8;
+  font-size: 12px;
+}
+.bulk-operation-summary > p {
+  margin-top: 10px;
+}
 .tag-picker {
   border: 1px solid var(--line);
   border-radius: 6px;
@@ -1743,6 +1825,26 @@ footer span:first-child {
     font-size: 11px;
     line-height: 1.6;
   }
+  .bulk-heading-actions {
+    flex-shrink: 0;
+    flex-direction: column;
+    align-items: flex-end;
+  }
+  .bulk-heading-actions .button {
+    font-size: 11px;
+    white-space: nowrap;
+  }
+  .bulk-toolbar {
+    padding: 15px;
+  }
+  .bulk-selection-actions {
+    justify-content: flex-start;
+    width: 100%;
+  }
+  .bulk-selection-actions .button {
+    flex: 1 1 auto;
+    font-size: 11px;
+  }
   .filters {
     padding: 13px;
     gap: 11px;