feat: add us-cpa preparation workflow

skills/us-cpa/src/us_cpa/cli.py

@@ -7,6 +7,7 @@ from pathlib import Path
 from typing import Any
 
 from us_cpa.cases import CaseConflictError, CaseManager
+from us_cpa.prepare import EfileExporter, PrepareEngine, render_case_forms
 from us_cpa.questions import QuestionEngine, render_analysis, render_memo
 from us_cpa.sources import TaxYearCorpus, bootstrap_irs_catalog
 
@@ -167,7 +168,40 @@ def main(argv: list[str] | None = None) -> int:
         }
         return _emit(payload, args.format)
 
-    if args.command in {"prepare", "review", "render-forms", "export-efile-ready"}:
+    if args.command == "prepare":
+        case_dir = _require_case_dir(args)
+        payload = {
+            "command": args.command,
+            "format": args.format,
+            **PrepareEngine().prepare_case(case_dir),
+        }
+        return _emit(payload, args.format)
+
+    if args.command == "render-forms":
+        case_dir = _require_case_dir(args)
+        manager = CaseManager(case_dir)
+        manifest = manager.load_manifest()
+        normalized = json.loads((case_dir / "return" / "normalized-return.json").read_text())
+        artifacts = render_case_forms(case_dir, TaxYearCorpus(), normalized)
+        payload = {
+            "command": "render-forms",
+            "format": args.format,
+            "taxYear": manifest["taxYear"],
+            "status": "rendered",
+            **artifacts,
+        }
+        return _emit(payload, args.format)
+
+    if args.command == "export-efile-ready":
+        case_dir = _require_case_dir(args)
+        payload = {
+            "command": "export-efile-ready",
+            "format": args.format,
+            **EfileExporter().export_case(case_dir),
+        }
+        return _emit(payload, args.format)
+
+    if args.command == "review":
         case_dir = _require_case_dir(args)
         payload = {
             "command": args.command,