add printing and plan templates.

pyproject.toml

@@ -9,6 +9,10 @@ dependencies = [
     "click>=8.1.8",
     "click-default-group>=1.2.4",
     "jinja2>=3.1.5",
+    "lxml>=5.3.1",
+    "markdown>=3.7",
+    "md2py>=0.0.1",
+    "pydantic>=2.10.6",
     "rich>=13.9.4",
 ]
 
@@ -18,3 +22,6 @@ plan = "plan:cli.cli"
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
+
+[dependency-groups]
+dev = ["pytest>=8.3.4", "wat>=0.5.0"]