gui: Options, Scheduler, Speed Limiter, Batch, Grabber, and the tray icon

Continues the build order past the Add-URL/File-Info/Progress dialog flow.

- OptionsDialog: General/Save To/Connection/Downloads/Proxy/Sounds tabs, every
  control bound to a real settings.* key (contracts/schema/types/Settings.
  schema.json). The spec's File Types and Site Logins tabs have no settings.*
  backing (categories go through category.upsert, credentials through the
  Secret Service) so they don't exist here — a tab either binds to a real key
  or isn't shipped. diffChanged() sends only what actually changed, matching
  settings.set's "changed[] names exactly what took effect" contract.
- SchedulerDialog: per-queue schedule (schedule.get/set) plus maxConcurrent/
  onComplete (queue.upsert), Start Now/Stop. Queue.schema.json already carries
  the schedule so queue.list alone seeds the window.
- SpeedLimiterDialog: the live global limiter (limiter.get/set) — a different
  thing from Options' downloads.speedLimit* default. buildParams() enforces
  the schema's "0 with enabled true must not be offered".
- BatchDialog: clipboard-blob and {start..end}-wildcard tabs sharing one
  category/queue/start-mode footer into download.addBatch.
- GrabberWizard: 4-step QWizard (project label -> start URL/depth/filters ->
  file-type filter -> review), grabber.start feeding a poll+event.grabber.
  progress-driven review page, Finish = grabber.harvest for the checked files.
- TrayIcon: active-count tooltip, Show/Add URL/Pause All/Resume All/Speed
  Limiter submenu/Quit. Quit only closes the GUI — there is no RPC to stop
  veloxd itself, filed as a new gap in daemon-requests-m1.md. MainWindow now
  also hides to tray instead of closing when general.minimizeToTray is set.

Every dialog's non-widget logic (diffChanged, buildSchedule, buildParams,
parseUrlBlob/expandWildcard/buildAddBatchParams, buildFileTypes/
buildStartParams/buildHarvestParams) is a static pure function with its own
test, same shape as FileInfoDialog::buildSpec from the previous round.

Verified end-to-end against a running mockd under ASan+UBSan: all five
surfaces render real data (settings.get values, queue.list's two seeded
queues, limiter.get, a live grabber.start/status crawl returning 3 files) with
no sanitizer reports. gui-check (non-ASan) and dev (ASan+UBSan) presets both
build the whole repo clean; all gui-labeled ctest targets pass.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01NSCdCWFXBTSBBK3MzWtJiC

gui/src/mainwindow/MainWindow.hpp

@@ -1,9 +1,10 @@
 // The main window. Lane GUI.
 //
-// M1 slice: the tray and the Options/Scheduler/Speed-Limiter/Batch/Grabber dialogs still
-// come later. This is the menus + toolbar + splitter (category tree | table), the table
-// driven by mockd, a status-bar connection dot, an offline banner instead of a modal, the
-// Add URL -> File Info flow, and a per-task progress dialog.
+// M1 slice: menus + toolbar + splitter (category tree | table), the table driven by
+// mockd, a status-bar connection dot, an offline banner instead of a modal, the Add URL ->
+// File Info flow, a per-task progress dialog, Options/Scheduler/Speed Limiter/Batch/
+// Grabber, and the tray icon. The floating drop target and clipboard capture are still to
+// come.
 
 #pragma once
 
@@ -24,6 +25,7 @@ namespace velox::gui {
 
 class DownloadTableModel;
 class CategoryPanel;
+class TrayIcon;
 namespace rpc {
 class RpcClient;
 }  // namespace rpc
@@ -55,12 +57,21 @@ class MainWindow : public QMainWindow {
     void openAddUrlDialog();
     void openPropertiesForSelection();
     void showTableContextMenu(const QPoint &pos);
+    void openOptionsDialog();
+    void openSchedulerDialog();
+    void openSpeedLimiterDialog();
+    void openBatchDialog();
+    void openGrabberWizard();
+    void showAndRaise();
+    void onSettingsChanged(const QJsonObject &params);
 
   private:
     void buildActions();
     void buildMenus();
     void buildToolBar();
+    void buildTray();
     void fetchTree();
+    void fetchMinimizeToTraySetting();
     QStringList selectedTaskIds() const;
     QStringList allTaskIds() const;
     void actOnTasks(const char *methodName, const QStringList &ids);
@@ -81,9 +92,17 @@ class MainWindow : public QMainWindow {
     QAction *actResumeAll_ = nullptr;
     QAction *actPauseAll_ = nullptr;
     QAction *actProperties_ = nullptr;
+    QAction *actOptions_ = nullptr;
+    QAction *actScheduler_ = nullptr;
+    QAction *actSpeedLimiter_ = nullptr;
+    QAction *actBatch_ = nullptr;
+    QAction *actGrabber_ = nullptr;
+    QAction *actShow_ = nullptr;
 
     QJsonArray categoriesCache_;
     QJsonArray queuesCache_;
+    TrayIcon *trayIcon_ = nullptr;
+    bool minimizeToTrayEnabled_ = false;
 
     QLabel *connDot_;
     QLabel *connText_;