🎉 Add clj fmt checking on CI and fmt fix script

.cljfmt.edn

@@ -0,0 +1,8 @@
+{:sort-ns-references? true
+ :remove-multiple-non-indenting-spaces? false
+ :remove-surrounding-whitespace? true
+ :remove-consecutive-blank-lines? false
+ :extra-indents {rumext.v2/fnc [[:inner 0]]
+                 promesa.exec/thread [[:inner 0]]
+                 specify! [[:inner 0] [:inner 1]]}
+ }