fix: use read-event with ctrl flag, add resize handling

- Switched back to read-event be :timeout 0.01 for proper key-event
  dispatch with the ctrl/alt/shift flags
- Fixed Ctrl+P/B/Q/L dispatch: check key-event-ctrl flag to
  construct :CTRL-<key> keyword symbol (read-event returns :P + ctrl=t,
  not :CTRL-P)
- Added :size-queried state flag and post-handshake backend-size re-query
- Removed hardcoded Connected v0.5.0 message from connect-daemon
- Removed Connected v0.7.2 system message (version shown in status bar)
- view-status now uses draw-rect for background (instead of dotimes loop)
- Added startup message showing backend type and detected dimensions

lisp/channel-tui-view.lisp

@@ -25,8 +25,7 @@ Returns a list of strings, one per line."
                       (length (st :messages))
                       (or (st :rule-count) 0)))
          (right (format nil "$~,2f  ~a" (or (st :session-cost) 0.0) (now))))
-    (dotimes (col w)
-      (cl-tty.backend:draw-text fb 0 (- h 1) (make-string w :initial-element #\Space) nil bg))
+    (cl-tty.backend:draw-rect fb 0 (- h 1) w 1 :bg bg)
     (cl-tty.backend:draw-text fb 1 (- h 1) left fg nil)
     (cl-tty.backend:draw-text fb (- w (length right) 2) (- h 1) right fg nil)))