[docker] clean up main dockerfile for router and dev configurations (#12364)

Co-authored-by: ybyang <ybyang7@iflytek.com>

docker/configs/.tmux.conf

@@ -0,0 +1,27 @@
+# Pane border styling
+set -g pane-border-style fg='#742727',bg=black
+set -g pane-active-border-style fg=red,bg=black
+
+# Status bar styling
+set -g status-style bg='#0C8A92',fg=black
+
+# Change prefix key to backtick
+set-option -g prefix `
+unbind C-b
+bind-key ` send-prefix
+
+# Split panes using - and = with current path
+unbind '"'
+bind - splitw -v -c '#{pane_current_path}'
+unbind '%'
+bind = splitw -h -c '#{pane_current_path}'
+
+# Vi mode settings
+bind-key -T copy-mode-vi Y send-keys -X copy-pipe 'yank > #{pane_tty}'
+set-window-option -g mode-keys vi
+
+# Other settings
+set-option -g escape-time 0
+set-option -g base-index 1
+set-window-option -g mouse on
+set -g history-limit 100000