fix(slice-17): bypass slice cache on focus refetch

packages/daemon/src/routes/slices.ts

@@ -49,6 +49,10 @@ export function slicesRoutes(): Hono {
         hint: `Unknown filter '${filter}'. Allowed: ${[...VALID_FILTERS].sort().join(", ")}.`,
       }, 400);
     }
+    const refresh = c.req.query("refresh");
+    if (refresh === "1" || refresh === "true") {
+      deps.indexer.invalidate();
+    }
     const all = deps.indexer.list();
     let filtered = filter === "all" ? all : all.filter((s) => s.status === filter);
     // Workflows in Spec Library v0: optional lens filter — narrow to

packages/daemon/test/slices-routes.test.ts

@@ -357,4 +357,22 @@ describe("PL-slice-story-view-v0 slices routes", () => {
       expect(res.status).toBe(503);
     });
   });
+
+  describe("GET /api/slices?refresh=1", () => {
+    it("drops the listing cache before returning the list", async () => {
+      writeSlice(slicesRoot, "before-slice", { "README.md": "---\n---\n" });
+      const first = await app.request("/api/slices");
+      const firstList = (await first.json()) as { slices: Array<{ name: string }> };
+      expect(firstList.slices.map((s) => s.name)).toEqual(["before-slice"]);
+
+      writeSlice(slicesRoot, "after-slice", { "README.md": "---\n---\n" });
+      const stale = await app.request("/api/slices");
+      const staleList = (await stale.json()) as { slices: Array<{ name: string }> };
+      expect(staleList.slices.map((s) => s.name)).toEqual(["before-slice"]);
+
+      const fresh = await app.request("/api/slices?refresh=1");
+      const freshList = (await fresh.json()) as { slices: Array<{ name: string }> };
+      expect(freshList.slices.map((s) => s.name).sort()).toEqual(["after-slice", "before-slice"]);
+    });
+  });
 });

packages/ui/src/hooks/useSlices.ts

@@ -54,7 +54,11 @@ async function fetchSlicesList(
   filter: SliceFilter,
   boundToWorkflow: BoundToWorkflowFilter | null,
 ): Promise<SliceListResponse | SlicesUnavailable> {
-  const params = new URLSearchParams({ filter });
+  // Explorer auto-show needs a daemon-side cache bypass as well as a
+  // React Query refetch. Otherwise a focus refetch can still receive the
+  // indexer's stale in-memory listing immediately after a slice folder is
+  // created.
+  const params = new URLSearchParams({ filter, refresh: "1" });
   if (boundToWorkflow) {
     params.set("boundToWorkflow", `${boundToWorkflow.specName}:${boundToWorkflow.specVersion}`);
   }