feat: support CustomRuleOptions

Author: pengzhanbo

src/rules/index.d.ts

@@ -0,0 +1,36 @@
+import type { RuleConfig } from './rule-config'
+import type { StyleLintRules } from './stylelint'
+
+/**
+ * This is a special exported interface for other packages to declare
+ * additional types that should bail out for eslint rules. For example
+ * `stylelint-scss` can declare it like so in its `d.ts`:
+ *
+ * ```ts
+ * import type { RuleConfig } from 'stylelint-define-config';
+ * declare module 'stylelint-define-config' {
+ *   export interface CustomRuleOptions {
+ *     'scss/at-else-closing-brace-newline-after': RuleConfig<
+ *        "always-last-in-chain",
+ *        { disableFix?: boolean }
+ *      >
+ *
+ *     // ... more Rules
+ *   }
+ * }
+ * ```
+ */
+export interface CustomRuleOptions {}
+
+type CustomRules = {
+  [TRuleName in keyof CustomRuleOptions]: CustomRuleOptions[TRuleName]
+}
+
+/**
+ * Rules determine what the linter looks for and complains about.
+ * There are {@link https://stylelint.io/user-guide/rules over 100 rules} built into Stylelint. No rules are turned on by default.
+ */
+export interface Rules extends
+  StyleLintRules,
+  CustomRules,
+  Record<string, RuleConfig> {}