fix: review findings for lazysecrets list: recent means the last 90 days, cache saves lock and keep deletions and the TUI's cursors, failed lists aren't retried, one expiry rule

internal/cachefile/cachefile_test.go

@@ -89,3 +89,34 @@ func TestReadOtherVersion(t *testing.T) {
 		t.Errorf("read another version's file: %+v", got)
 	}
 }
+
+func TestSaveDroppedAndCursors(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "cache.json")
+	now := time.Now()
+	all := func(string) bool { return true }
+	f := New()
+	f.Containers["az|bad"] = list(now, "kv-old")
+	f.Cursor["az|x"] = "kv-tui"
+	if err := Save(path, f, all, now); err != nil {
+		t.Fatal(err)
+	}
+	// The TUI fails to load it again and drops it: it stays gone.
+	f = New()
+	f.Dropped = map[string]bool{"az|bad": true}
+	if err := Save(path, f, all, now); err != nil {
+		t.Fatal(err)
+	}
+	if _, ok := Read(path).Containers["az|bad"]; ok {
+		t.Error("a dropped list came back")
+	}
+	// lazysecrets list saves without cursors: the TUI's stay.
+	listed := New()
+	listed.Cursor = nil
+	listed.Containers["az|y"] = list(now, "kv-y")
+	if err := Save(path, listed, all, now); err != nil {
+		t.Fatal(err)
+	}
+	if Read(path).Cursor["az|x"] != "kv-tui" {
+		t.Error("the TUI's cursor was lost")
+	}
+}