fix(kanban): use selectChangeHandler for workspace, parent, and bulk-reassign selects (#24547)

SDK Select fires onValueChange(value) not onChange({target:{value}}), so
all three bare onChange handlers silently received undefined from e.target.

Replace raw onChange with selectChangeHandler() — the existing helper that
wires both onValueChange and a guarded onChange — so selections register
regardless of which event the SDK Select dispatches.

Closes #24520

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kanban/dashboard/dist/index.js

@@ -2027,11 +2027,10 @@
       ),
       h("div", { className: "hermes-kanban-bulk-reassign",
                  title: "Reassign selected tasks to a different Hermes profile. Pick a profile (or unassign) and click Apply." },
-        h(Select, {
+        h(Select, Object.assign({
           value: assignee,
-          onChange: function (e) { setAssignee(e.target.value); },
           className: "h-7 text-xs",
-        },
+        }, selectChangeHandler(setAssignee)),
           h(SelectOption, { value: "" }, "— reassign —"),
           h(SelectOption, { value: "__none__" }, "(unassign)"),
           props.assignees.map(function (a) {
@@ -2542,12 +2541,11 @@
         className: "h-7 text-xs",
       }),
       h("div", { className: "flex gap-2" },
-        h(Select, {
+        h(Select, Object.assign({
           value: workspaceKind,
-          onChange: function (e) { setWorkspaceKind(e.target.value); },
           title: "scratch: isolated temp dir (default). worktree: git worktree on the assignee profile. dir: exact path (required below).",
           className: "h-7 text-xs w-28",
-        },
+        }, selectChangeHandler(setWorkspaceKind)),
           h(SelectOption, { value: "scratch" }, "scratch"),
           h(SelectOption, { value: "worktree" }, "worktree"),
           h(SelectOption, { value: "dir" }, "dir"),
@@ -2559,12 +2557,11 @@
           className: "h-7 text-xs flex-1",
         }) : null,
       ),
-      h(Select, {
+      h(Select, Object.assign({
         value: parent,
-        onChange: function (e) { setParent(e.target.value); },
         className: "h-7 text-xs",
         title: "Optional parent task. A child stays blocked in its current column until the parent is marked done.",
-      },
+      }, selectChangeHandler(setParent)),
         h(SelectOption, { value: "" }, tx(t, "noParent", "— no parent —")),
         (props.allTasks || []).map(function (task) {
           return h(SelectOption, { key: task.id, value: task.id },