Expand governed Dataflow editor and node library

webui/src/styles/dataflow.css

@@ -240,7 +240,7 @@
 .dataflow-editor {
   flex: 1 1 auto;
   display: grid;
-  grid-template-columns: 170px minmax(0, 1fr) minmax(260px, 310px);
+  grid-template-columns: 210px minmax(0, 1fr) minmax(260px, 310px);
   min-height: 0;
   overflow: hidden;
 }
@@ -297,10 +297,32 @@
 .dataflow-palette-items {
   display: grid;
   gap: 4px;
+  height: calc(100% - 44px);
   padding: 8px;
   overflow: auto;
 }
 
+.dataflow-palette-group {
+  display: grid;
+  gap: 2px;
+}
+
+.dataflow-palette-group + .dataflow-palette-group {
+  margin-top: 6px;
+  padding-top: 8px;
+  border-top: var(--border-line);
+}
+
+.dataflow-palette-group h3 {
+  margin: 0;
+  color: var(--muted);
+  font-size: 10px;
+  font-weight: 700;
+  letter-spacing: 0;
+  padding: 3px 8px;
+  text-transform: uppercase;
+}
+
 .dataflow-palette-items button {
   display: grid;
   grid-template-columns: 18px minmax(0, 1fr) 14px;
@@ -425,6 +447,17 @@
   border-left-color: #b7791f;
 }
 
+.dataflow-node-combine-union,
+.dataflow-node-combine-join {
+  min-height: 64px;
+  border-left-color: #2f7d6d;
+}
+
+.dataflow-node-distinct {
+  border-left-color: #b7791f;
+}
+
+.dataflow-node-derive,
 .dataflow-node-aggregate {
   border-left-color: #76569b;
 }
@@ -507,6 +540,24 @@
   background: var(--accent);
 }
 
+.dataflow-node-port-label {
+  position: absolute;
+  left: 8px;
+  max-width: 42px;
+  overflow: hidden;
+  color: var(--muted);
+  font-size: 8px;
+  line-height: 1;
+  pointer-events: none;
+  text-overflow: ellipsis;
+  transform: translateY(-50%);
+  white-space: nowrap;
+}
+
+.dataflow-node-combine-join .dataflow-node-icon {
+  margin-left: 31px;
+}
+
 .dataflow-inspector-fields {
   display: grid;
   gap: 12px;
@@ -546,6 +597,27 @@
   color: var(--danger-text);
 }
 
+.dataflow-source-dialog {
+  width: min(720px, calc(100vw - 32px));
+}
+
+.dataflow-source-dialog-fields {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 12px;
+}
+
+.dataflow-source-dialog-fields .alert,
+.dataflow-source-dialog-format,
+.dataflow-source-dialog-fields .form-field:last-child {
+  grid-column: 1 / -1;
+}
+
+.dataflow-source-dialog-fields .dataflow-json-editor {
+  width: 100%;
+  min-height: 260px;
+}
+
 .dataflow-sql-workbench {
   display: flex;
   height: 100%;
@@ -651,9 +723,12 @@
   background: var(--primary-soft);
 }
 
-.dataflow-preview-truncated {
+.dataflow-preview-summary {
   position: sticky;
   bottom: 0;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px 16px;
   padding: 6px 10px;
   border-top: var(--border-line);
   background: var(--panel-header);
@@ -754,7 +829,7 @@
   }
 
   .dataflow-editor {
-    grid-template-columns: 150px minmax(0, 1fr) 270px;
+    grid-template-columns: 180px minmax(0, 1fr) 270px;
   }
 
   .dataflow-editor.is-sql {
@@ -839,6 +914,23 @@
     overflow-x: auto;
   }
 
+  .dataflow-palette-group {
+    display: flex;
+    flex: 0 0 auto;
+  }
+
+  .dataflow-palette-group + .dataflow-palette-group {
+    margin-top: 0;
+    padding-top: 0;
+    padding-left: 6px;
+    border-top: 0;
+    border-left: var(--border-line);
+  }
+
+  .dataflow-palette-group h3 {
+    display: none;
+  }
+
   .dataflow-palette-items button {
     min-width: 128px;
   }