build: 版本目录与根构建配置

.editorconfig

@@ -0,0 +1,16 @@
+[*.{kt,kts}]
+ij_kotlin_allow_trailing_comma=true
+ij_kotlin_allow_trailing_comma_on_call_site=true
+ktlint_function_naming_ignore_when_annotated_with=Composable, Test
+# 包名 com.mingyuan.android_client 含下划线，是刻意保留（见 docs/decisions/0004）。
+ktlint_standard_package-name = disabled
+ktlint_standard_backing-property-naming = disabled
+ktlint_standard_binary-expression-wrapping = disabled
+ktlint_standard_chain-method-continuation = disabled
+ktlint_standard_class-signature = disabled
+ktlint_standard_condition-wrapping = disabled
+ktlint_standard_function-expression-body = disabled
+ktlint_standard_function-literal = disabled
+ktlint_standard_function-type-modifier-spacing = disabled
+ktlint_standard_multiline-loop = disabled
+ktlint_standard_function-signature = disabled