feat(wave3): @mosaic/prdy TypeScript PRD wizard (#7)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/prdy/src/cli.ts

@@ -0,0 +1,103 @@
+import { Command } from 'commander';
+
+import { createPrd, listPrds, loadPrd } from './prd.js';
+import { runPrdWizard } from './wizard.js';
+
+interface InitCommandOptions {
+  readonly name: string;
+  readonly project: string;
+  readonly template?: 'software' | 'feature' | 'spike';
+}
+
+interface ListCommandOptions {
+  readonly project: string;
+}
+
+interface ShowCommandOptions {
+  readonly project: string;
+  readonly id?: string;
+}
+
+export function buildPrdyCli(): Command {
+  const program = new Command();
+  program
+    .name('mosaic')
+    .description('Mosaic CLI')
+    .exitOverride();
+
+  const prdy = program.command('prdy').description('PRD wizard commands');
+
+  prdy
+    .command('init')
+    .description('Create a PRD document')
+    .requiredOption('--name <name>', 'PRD name')
+    .requiredOption('--project <path>', 'Project path')
+    .option('--template <template>', 'Template (software|feature|spike)')
+    .action(async (options: InitCommandOptions) => {
+      const doc = process.stdout.isTTY
+        ? await runPrdWizard({
+            name: options.name,
+            projectPath: options.project,
+            template: options.template,
+            interactive: true,
+          })
+        : await createPrd({
+            name: options.name,
+            projectPath: options.project,
+            template: options.template,
+            interactive: false,
+          });
+
+      console.log(
+        JSON.stringify(
+          {
+            ok: true,
+            id: doc.id,
+            title: doc.title,
+            status: doc.status,
+            projectPath: doc.projectPath,
+          },
+          null,
+          2,
+        ),
+      );
+    });
+
+  prdy
+    .command('list')
+    .description('List PRD documents for a project')
+    .requiredOption('--project <path>', 'Project path')
+    .action(async (options: ListCommandOptions) => {
+      const docs = await listPrds(options.project);
+      console.log(JSON.stringify(docs, null, 2));
+    });
+
+  prdy
+    .command('show')
+    .description('Show a PRD document')
+    .requiredOption('--project <path>', 'Project path')
+    .option('--id <id>', 'PRD document id')
+    .action(async (options: ShowCommandOptions) => {
+      if (options.id !== undefined) {
+        const docs = await listPrds(options.project);
+        const match = docs.find((doc) => doc.id === options.id);
+
+        if (match === undefined) {
+          throw new Error(`PRD id not found: ${options.id}`);
+        }
+
+        console.log(JSON.stringify(match, null, 2));
+        return;
+      }
+
+      const doc = await loadPrd(options.project);
+      console.log(JSON.stringify(doc, null, 2));
+    });
+
+  return program;
+}
+
+export async function runPrdyCli(argv: readonly string[] = process.argv): Promise<void> {
+  const program = buildPrdyCli();
+  await program.parseAsync(argv);
+}