feat(FN-3765): add run panel and generation pipeline for CLI printing press

Adds a CLI command generation pipeline with a runner to execute generated commands, run/artifact API routes, and a TestRunnerPanel UI for monitoring execution — complete with tests covering the generator, runner, run routes, and the panel component.

Fusion-Task-Id: FN-3765

plugins/fusion-plugin-cli-printing-press/src/storage/draft-store.ts

@@ -24,6 +24,10 @@ function mergeDraft(existing: ServiceDraft, patch: Partial<ServiceDraft>): Servi
   };
 }
 
+export function getArtifactDir(id: string, projectRoot: string): string {
+  return join(projectRoot, ".fusion", "plugins", "cli-printing-press", "generated", id);
+}
+
 export function createDraftStore({ rootDir }: { rootDir: string }) {
   const draftsDir = join(rootDir, ".fusion", "plugins", "cli-printing-press", "drafts");