fix(hive): „Zurück“ im Fokus-Modus nicht mehr von der Liste verdeckt

Auf dem Handy lag die offene Aufbau-Liste (288 px, rechts, z-10) über dem
rechten Teil der „Zurück“-Pille, der Tipp landete in der Liste und der
Fokus blieb. Die Spalte für Liste und Knopfleiste beginnt jetzt unter der
gemessenen Titel- bzw. Fokusleiste (insets.top + 8 px), wie sie schon über
den Knöpfen endet.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Frontend/src/components/hive/hive-card.spec.tsx

@@ -231,6 +231,29 @@ describe("HiveCard", () => {
     expect(buttons?.parentElement).toBe(column.parentElement);
   });
 
+  it("starts the outline panel below the title or focus bar, so it never covers „Zurück“", async () => {
+    // jsdom has no layout: every overlay reports 60 px, the observer measures once.
+    vi.stubGlobal(
+      "ResizeObserver",
+      class {
+        observe() {}
+        disconnect() {}
+      },
+    );
+    const height = vi.spyOn(HTMLElement.prototype, "offsetHeight", "get").mockReturnValue(60);
+    try {
+      renderCard();
+      await userEvent.click(await screen.findByRole("button", { name: "Aufbau als Liste" }));
+
+      const column = screen.getByTestId("hive-outline-scroll").parentElement!.parentElement!.parentElement!;
+      // 60 px overlay + 12 px from the stage top + 8 px gap.
+      expect(column).toHaveStyle({ paddingTop: "80px" });
+    } finally {
+      height.mockRestore();
+      vi.unstubAllGlobals();
+    }
+  });
+
   it("shows title and facts as a frosted overlay and the actions as glass buttons on the stage", async () => {
     renderCard();
     await screen.findByRole("img", { name: /Beute mit/ });

ApiCore-Frontend/src/components/hive/hive-card.tsx

@@ -157,6 +157,8 @@ function HiveCardContent({ colonyId, colony, mode = "view", onOpsChange, initial
 /** Top: title panel or focus bar (placed 12 px from the top). Bottom: the button column (8 px padding). */
 const TOP_OVERLAY_OFFSET_PX = 12;
 const BOTTOM_OVERLAY_OFFSET_PX = 8;
+/** Gap between the top overlay and the outline panel (the column's p-2). */
+const OUTLINE_GAP_PX = 8;
 
 /** Heights of the overlays over the stage, so the 3D camera keeps the model clear of them. */
 function useOverlayInsets(top: RefObject<HTMLElement | null>, bottom: RefObject<HTMLElement | null>) {
@@ -349,8 +351,12 @@ function HiveCardBody({ colonyId, setup, catalog, canEdit, mode, onOpsChange, in
           )}
         </div>
         {/* One column for the outline panel and the button bar: the panel always ends above the
-            buttons, however they wrap. DOM order keeps the buttons before the tree (tab order). */}
-        <div className="pointer-events-none absolute inset-0 flex flex-col gap-2 p-2">
+            buttons, however they wrap, and starts below the title or focus bar (on a phone it
+            would cover „Zurück“). DOM order keeps the buttons before the tree (tab order). */}
+        <div
+          className="pointer-events-none absolute inset-0 flex flex-col gap-2 p-2"
+          style={{ paddingTop: insets.top + OUTLINE_GAP_PX }}
+        >
           <div ref={bottomOverlayRef} className="order-2 flex flex-col items-center gap-2 p-1">
             {past ? (
               <div className="pointer-events-auto">