feat(desktop): clarify key browser search states

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/desktop/src/lib/key-browser-search.test.ts

@@ -0,0 +1,83 @@
+import { describe, expect, it } from "vitest";
+import {
+  buildInspectorEmptyStateMessage,
+  buildKeyBrowserEmptyStateMessage,
+  buildKeyBrowserStatusMessage,
+  resolveKeyBrowserSearchState,
+} from "./key-browser-search";
+
+describe("key browser search helpers", () => {
+  it("classifies blank, contains, and wildcard search input", () => {
+    expect(resolveKeyBrowserSearchState("   ")).toEqual({
+      trimmedQuery: "",
+      requestPattern: null,
+      mode: "all",
+    });
+
+    expect(resolveKeyBrowserSearchState(" smoke ")).toEqual({
+      trimmedQuery: "smoke",
+      requestPattern: "*smoke*",
+      mode: "contains",
+    });
+
+    expect(resolveKeyBrowserSearchState("smoke:*")).toEqual({
+      trimmedQuery: "smoke:*",
+      requestPattern: "smoke:*",
+      mode: "pattern",
+    });
+  });
+
+  it("builds a stable status message for visible counts and load state", () => {
+    expect(
+      buildKeyBrowserStatusMessage({
+        databaseLabel: "db0",
+        visibleCount: 7,
+        hasMore: true,
+        isLoading: false,
+        search: resolveKeyBrowserSearchState("smoke"),
+      }),
+    ).toBe('7+ keys visible for contains search "smoke" in db0.');
+
+    expect(
+      buildKeyBrowserStatusMessage({
+        databaseLabel: "db3",
+        visibleCount: 0,
+        hasMore: false,
+        isLoading: true,
+        search: resolveKeyBrowserSearchState("smoke:*"),
+      }),
+    ).toBe('Searching db3 for "smoke:*".');
+  });
+
+  it("builds browser empty-state copy for blank and filtered results", () => {
+    expect(
+      buildKeyBrowserEmptyStateMessage({
+        databaseLabel: "db0",
+        isLoading: false,
+        search: resolveKeyBrowserSearchState(""),
+      }),
+    ).toBe("No keys are visible in db0 yet.");
+
+    expect(
+      buildKeyBrowserEmptyStateMessage({
+        databaseLabel: "db2",
+        isLoading: false,
+        search: resolveKeyBrowserSearchState("audit:*"),
+      }),
+    ).toBe('No keys match "audit:*" in db2.');
+  });
+
+  it("keeps inspector empty-state guidance aligned with browser search state", () => {
+    expect(
+      buildInspectorEmptyStateMessage("db1", resolveKeyBrowserSearchState("")),
+    ).toBe(
+      "No keys are visible in db1 yet. Browse another database or refresh after data arrives.",
+    );
+
+    expect(
+      buildInspectorEmptyStateMessage("db4", resolveKeyBrowserSearchState("jobs")),
+    ).toBe(
+      'No keys match "jobs" in db4. Clear or adjust the search to restore an inspector target.',
+    );
+  });
+});