Commit preview panel at the bottom; open other repositories from a recent list or a folder picker

src/lib/recents.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from "vitest";
+import { addRecent, MAX_RECENTS } from "./recents";
+
+describe("addRecent", () => {
+  it("puts the path first", () => {
+    expect(addRecent(["/a", "/b"], "/c")).toEqual(["/c", "/a", "/b"]);
+  });
+  it("moves a path that is already there to the front instead of repeating it", () => {
+    expect(addRecent(["/a", "/b", "/c"], "/b")).toEqual(["/b", "/a", "/c"]);
+  });
+  it("keeps the list short", () => {
+    const many = Array.from({ length: MAX_RECENTS }, (_, i) => `/r${i}`);
+    const out = addRecent(many, "/new");
+    expect(out).toHaveLength(MAX_RECENTS);
+    expect(out[0]).toBe("/new");
+    expect(out).not.toContain(`/r${MAX_RECENTS - 1}`);
+  });
+});