some fixes

python_app/webui/static/app.js

@@ -89,6 +89,14 @@ function makeFieldRow(entry) {
   const label = document.createElement("label");
   label.textContent = entry.name;
   label.htmlFor = "f_" + entry.name;
+  if (entry.applies_on_start) {
+    // Stable run_config field: editing it here takes effect on the next pipeline start.
+    const hint = document.createElement("span");
+    hint.className = "on-start-hint";
+    hint.textContent = " (on Start)";
+    hint.title = "Applied when the pipeline next starts";
+    label.appendChild(hint);
+  }
   row.appendChild(label);
 
   let el;
@@ -112,6 +120,10 @@ function makeFieldRow(entry) {
     if (entry.max != null) el.max = entry.max;
     el.step = entry.kind === "float" ? (entry.step || "any") : (entry.step || 1);
     el.value = entry.value;
+  } else if (entry.kind === "textarea") {
+    el = document.createElement("textarea");
+    el.rows = 3;
+    el.value = entry.value == null ? "" : String(entry.value);
   } else {
     el = document.createElement("input");
     el.type = "text";