fix: hide unavailable GeoServer layers

src/features/workbench/map/workbench-map-controller.test.ts

@@ -21,6 +21,43 @@ describe("WorkbenchMapController", () => {
     expect(map.removeFeatureState).not.toHaveBeenCalledWith(expect.anything(), "selected");
   });
 
+  it("clears a stale highlight without touching a removed source", async () => {
+    const map = createMap();
+    const controller = createController(map, pointCollection);
+    await controller.highlight({ sourceId: "junctions", featureId: "J-1" });
+    map.getSource.mockReturnValue(undefined);
+
+    controller.clearHighlight();
+
+    expect(map.removeFeatureState).not.toHaveBeenCalled();
+    expect(controller.getSnapshot().target).toBeNull();
+  });
+
+  it("ignores a resolved highlight after its source has been removed", async () => {
+    const map = createMap();
+    map.getSource.mockReturnValue(undefined);
+    const controller = createController(map, pointCollection);
+
+    await controller.highlight({ sourceId: "junctions", featureId: "J-1" });
+
+    expect(map.setFeatureState).not.toHaveBeenCalled();
+    expect(controller.getSnapshot().target).toBeNull();
+    expect(controller.getSnapshot().errorCode).toBe("FEATURE_NOT_FOUND");
+  });
+
+  it("does not move to a cached feature after its source has been removed", async () => {
+    const map = createMap();
+    const controller = createController(map, pointCollection);
+    const target = { sourceId: "junctions" as const, featureId: "J-1" };
+    await controller.locateAndHighlight(target);
+    map.getSource.mockReturnValue(undefined);
+
+    await controller.locateAndHighlight(target);
+
+    expect(map.easeTo).toHaveBeenCalledTimes(1);
+    expect(controller.getSnapshot().errorCode).toBe("FEATURE_NOT_FOUND");
+  });
+
   it("fits line bounds and uses responsive workbench padding", async () => {
     const map = createMap();
     const padding = { top: 50, right: 420, bottom: 50, left: 320 };
@@ -281,7 +318,7 @@ function createMap() {
   const images = new Set<string>();
   return {
     easeTo: vi.fn(), fitBounds: vi.fn(), setFeatureState: vi.fn(), removeFeatureState: vi.fn(),
-    getSource: vi.fn(), getLayer: vi.fn(), addLayer: vi.fn(), setPaintProperty: vi.fn(),
+    getSource: vi.fn((_id: string): unknown => ({})), getLayer: vi.fn(), addLayer: vi.fn(), setPaintProperty: vi.fn(),
     setLayoutProperty: vi.fn(), setFilter: vi.fn(), removeControl: vi.fn(), triggerRepaint: vi.fn(),
     hasImage: vi.fn((id: string) => images.has(id)),
     addImage: vi.fn((id: string) => {