feat: CLI 错误类层次

src/cli/errors.ts

@@ -0,0 +1,26 @@
+export class CliError extends Error {
+  readonly hint?: string;
+  readonly usage?: string;
+
+  constructor(
+    message: string,
+    opts?: { hint?: string; usage?: string },
+  ) {
+    super(message);
+    this.name = this.constructor.name;
+    this.hint = opts?.hint;
+    this.usage = opts?.usage;
+  }
+}
+
+export class UsageError extends CliError {}
+
+export class ConfigError extends CliError {}
+
+export class CommandError extends CliError {}
+
+export class InternalError extends CliError {
+  constructor() {
+    super("发生了未预期的错误");
+  }
+}