Look for bundled templates too

src/simstadt/runner.py

@@ -63,9 +63,12 @@ def get_simstadt_folder() -> Path:
 def get_template_path() -> Path:
     if "SIMSTADT_TEMPLATE_PATH" in os.environ:
         return Path(os.environ["SIMSTADT_TEMPLATE_PATH"])
-    fallback = Path.cwd() / "templates"
-    if fallback.exists():
-        return fallback
+    local_templates = Path.cwd() / "templates"
+    if local_templates.exists():
+        return local_templates
+    bundled = Path(__file__).parent / "templates"
+    if bundled.exists():
+        return bundled
     raise ValueError(
         "No template path found. Set SIMSTADT_TEMPLATE_PATH or create a templates/ directory."
     )