Address review: combine unknown option tests, make --config primary with --config-path alias

Agent-Logs-Url: https://github.com/microsoft/beachball/sessions/13e97a54-84b3-4b4c-adf8-9f0ff9ae878d

Author: Copilot

src/__functional__/options/getCliOptions.test.ts

@@ -215,23 +215,11 @@ describe('getCliOptions', () => {
     expect(getDefaultRemoteBranch).toHaveBeenCalledWith({ branch: 'foo', verbose: undefined, cwd: projectRoot });
   });
 
-  it('throws on unknown string options', () => {
+  it('throws on unknown options', () => {
     expect(() => getCliOptionsTest(['change', '--foo', 'bar'])).toThrow();
-  });
-
-  it('throws on unknown boolean flags', () => {
     expect(() => getCliOptionsTest(['change', '--foo'])).toThrow();
-  });
-
-  it('throws on unknown negated boolean flags', () => {
     expect(() => getCliOptionsTest(['change', '--no-bar'])).toThrow();
-  });
-
-  it('throws on unknown option with value', () => {
     expect(() => getCliOptionsTest(['change', '--foo', 'true'])).toThrow();
-  });
-
-  it('throws on unknown option specified multiple times', () => {
     expect(() => getCliOptionsTest(['change', '--foo', 'bar', '--foo', 'baz'])).toThrow();
   });
 

src/options/getCliOptions.ts

@@ -96,8 +96,8 @@ function addSharedOptions(cmd: Command): Command {
   cmd.option('--canary-name <value>', 'canary prerelease name');
   cmd.option('--changehint <value>', 'custom hint message when change files are needed');
   cmd.option('--change-dir <value>', 'directory to store change files');
-  cmd.option('-c, --config-path <value>', 'custom beachball config path');
-  cmd.addOption(new Option('--config <value>').hideHelp()); // hidden alias for --config-path
+  cmd.option('-c, --config <value>', 'custom beachball config path');
+  cmd.addOption(new Option('--config-path <value>').hideHelp()); // hidden alias for --config
   cmd.option('--dependent-change-type <value>', 'change type for dependent packages');
   cmd.option('--since, --from-ref <value>', 'consider changes since this git ref');
   cmd.option('-m, --message <value>', 'change description or commit message');
@@ -342,7 +342,7 @@ export function getCliOptions(processOrArgv: ProcessInfo | string[]): ParsedOpti
 
   const commanderOpts = { ...match.opts };
 
-  // Handle --config as alias for --config-path
+  // Handle --config-path as alias for --config (both map to configPath)
   if (commanderOpts.config !== undefined) {
     if (commanderOpts.configPath !== undefined) {
       throw new Error('Cannot specify both --config and --config-path');