Fix context menu Pin/Delete and Control+click race.

Control+click was treated as multi-select and a window click listener dismissed the menu before Pin/Delete could run; fire menu actions on mousedown and close only on outside pointerdown.

docs/GUIDE.md

@@ -82,8 +82,10 @@ saved history entry is never modified.
 |---|---|
 | Multi-select | `Cmd+Click` to toggle one, `Shift+Click`/`Shift+Arrow` for a range, `Cmd+A` for all |
 | Paste multiple selected items (joined with newlines) | `Enter` |
-| Delete | `Backspace`/`Delete` with items selected |
+| Delete | `Backspace`/`Delete` with items selected, or right-click → **Delete** |
 | Pin (keep forever, always on top) | Right-click → **Pin** / **Unpin** |
+
+On macOS, **Control+click** opens the context menu (same as right-click). Use **Cmd+Click** for multi-select — Control+click is not multi-select.
 | Search | Just start typing — instant full-text search |
 
 ### What you'll see in the list

docs/LAUNCH-AT-LOGIN.md

@@ -29,6 +29,10 @@ If the toggle fails:
 
 1. System Settings → General → Login Items → **+** → choose `maCopy.app`
 2. Or: right-click maCopy in the Dock (while open) → Options → **Open at Login**
+3. Or install a LaunchAgent (also restarts after crash/`kill`, but not after a normal Quit):
+
+   `~/Library/LaunchAgents/macopy.plist` → `/Applications/maCopy.app/Contents/MacOS/macopy`  
+   with `RunAtLoad` + `KeepAlive` (`SuccessfulExit` = false).
 
 ## Requirements for it to stick