fix: revert to blocking connect-daemon, daemon connection now reliable

- Revert async connect-daemon thread (bt:make-thread unreliable — errors
  in the thread cause silent failure, no connection, no error message)
- Restore blocking connect-daemon before with-terminal (original pattern
  that was working)
- Revert /reconnect to synchronous call
- Remove stale async thread code and error messages

org/channel-tui-main.org

@@ -437,10 +437,12 @@ Event handlers + daemon I/O + main loop.
                     (add-msg :system "* Goodbye *")
                     (send-daemon (list :type :event :payload '(:action :quit)))
                     (setf (st :running) nil))
-                   ;; /reconnect — re-establish daemon connection
+                    ;; /reconnect — re-establish daemon connection
-                   ((string-equal text "/reconnect")
+                    ((string-equal text "/reconnect")
-                    (disconnect-daemon)
+                     (disconnect-daemon)
-                    (connect-daemon))
+                     (add-msg :system "* Reconnecting... *")
+                     (connect-daemon)
+                     (setf (st :dirty) (list t t nil)))
                    ;; Normal message
                   (t
                    (add-msg :user text)
@@ -905,8 +907,8 @@ supplied (e.g. \"/\"), pre-fill the select filter with it."
                                    (if (typep be 'cl-tty.backend:modern-backend) "modern" "simple")
                                    w h))
           ;; Initial dirty all to trigger first redraw in loop
-          (setq w (or (and (numberp w) (> w 0) w) 80)
+           (setq w (or (and (numberp w) (> w 0) w) 80)
-                h (or (and (numberp h) (> h 0) h) 24))
+                 h (or (and (numberp h) (> h 0) h) 24))
           (loop while (st :running) do
                (dolist (ev (drain-queue))
                  (cond