style: improve code formatting; refactor module imports

- Apply consistent alignment for struct fields and parameters
- Standardize string literal delimiters to single quotes
- Refactor module import strategy in `models` package
- Enhance asset formatting for precise decimal display
- Remove unused imports and redundant `+}` syntax artifacts

lib/data/paramsparser/params_get_kwargs_test.v

@@ -175,7 +175,7 @@ fn test_get_u64_default() {
 	assert params.get_u64_default('key3', 17)! == 17
 }
 
-fn test_get_u32()! {
+fn test_get_u32() ! {
 	text := '
 		key1: val1
 		key2: 19