Release v0.6.0: screenshot notifications with previews and responsive clipboard history

README.md

@@ -71,8 +71,16 @@ physical key positions and therefore reset recent-word tracking; selection conve
 Press **Win+Shift+S**, choose **Capture screen region…** in the tray menu, or run
 `KSwitcher.exe --capture`. Drag a rectangle on the dimmed, frozen desktop; the selected area stays
 at normal brightness. Escape cancels. Selection and annotation frames are buffered to avoid flicker.
-The editor opens with the selected area. Press **Ctrl+C** or **Enter** to copy it immediately,
-or annotate first: **N** places sequential numbered red markers with a click, and **A** draws
+The selected area is copied immediately and Windows shows a notification with a thumbnail.
+Click the notification to open the editor, including after the screenshot process has exited.
+If notifications are disabled or cannot be sent, the already-copied screenshot opens in the editor.
+Originals in the local notification cache are DPAPI-encrypted. Thumbnail PNGs live in a separate
+per-user cache under ProgramData, readable only by that user and SYSTEM, so the Windows notification
+broker can load them even when the profile directory is inaccessible to it.
+Notifications expire after 24 hours. Cache cleanup runs on capture/open; each cache is bounded to
+40 files and 256 MiB. Expired or evicted notifications cannot reopen their screenshot.
+In the editor, **Ctrl+C** or **Enter** copies the current result without closing the window.
+To annotate: **N** places sequential numbered red markers with a click, and **A** draws
 red arrows by dragging from the tail to the tip. Click an existing marker or arrow to select it;
 drag its body to move it. Drag the square handle on a number's right edge to change its diameter
 (the text scales with it), or either endpoint handle of an arrow to change its length and direction.