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

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

docker/configs/.gitconfig

@@ -0,0 +1,30 @@
+[core]
+	editor = vim
+	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
+	pager = diff-so-fancy | less --tabs=4 -RFX
+
+[color]
+	ui = true
+
+[color "diff-highlight"]
+	oldNormal = red bold
+	oldHighlight = red bold 52
+	newNormal = green bold
+	newHighlight = green bold 22
+
+[color "diff"]
+	meta = 11
+	frag = magenta bold
+	commit = yellow bold
+	old = red bold
+	new = green bold
+	whitespace = red reverse
+
+[alias]
+	lg = log --color --graph --pretty=format:'%Cred%h%Creset - %s %Cgreen(%cr) %C(bold blue)<%an>%Creset%C(auto)%d%Creset' --abbrev-commit --
+
+[http]
+	sslVerify = false
+
+[pull]
+	rebase = true