Add CLI module deduplication and improve conflict reporting

Individual CLI modules now silently take precedence over array-sourced
modules (e.g. from cli-defaults) when their commands overlap. Conflict
errors between non-array modules include both package names for easier
debugging.

Commands reference their parent module instead of storing a raw package
name string. createCliModule now validates that packageJson has a name.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/cli-node/src/cli-module/createCliModule.ts

@@ -55,6 +55,12 @@ export function createCliModule(options: {
     addCommand: (command: CliCommand) => void;
   }) => Promise<void>;
 }): CliModule {
+  if (!options.packageJson.name) {
+    throw new Error(
+      'The packageJson provided to createCliModule must have a name',
+    );
+  }
+
   const commands: CliCommand[] = [];
   const commandsPromise = options
     .init({ addCommand: command => commands.push(command) })