refactor: Update runner specifications from 'python_uv_tool' to 'python' across components and documentation

cli/src/castle_cli/commands/create.py

@@ -15,7 +15,7 @@ from castle_cli.manifest import (
     ManageSpec,
     PathInstallSpec,
     ProxySpec,
-    RunPythonUvTool,
+    RunPython,
     SystemdSpec,
     ToolSpec,
 )
@@ -78,8 +78,8 @@ def run_create(args: argparse.Namespace) -> int:
             id=name,
             description=args.description or f"A castle {proj_type}",
             source=f"components/{name}",
-            run=RunPythonUvTool(
-                runner="python_uv_tool",
+            run=RunPython(
+                runner="python",
                 tool=name,
             ),
             expose=ExposeSpec(

cli/src/castle_cli/commands/deploy.py

@@ -174,7 +174,7 @@ def _build_deployed(
 def _build_run_cmd(run: object, env: dict[str, str]) -> list[str]:
     """Build a run command list from a RunSpec."""
     match run.runner:
-        case "python_uv_tool":
+        case "python":
             resolved = shutil.which(run.tool)
             if not resolved:
                 print(
@@ -185,12 +185,6 @@ def _build_run_cmd(run: object, env: dict[str, str]) -> list[str]:
             if run.args:
                 cmd.extend(run.args)
             return cmd
-        case "python_module":
-            python = run.python or shutil.which("python3") or "python3"
-            cmd = [python, "-m", run.module]
-            if run.args:
-                cmd.extend(run.args)
-            return cmd
         case "command":
             cmd = list(run.argv)
             resolved = shutil.which(cmd[0])

cli/src/castle_cli/commands/sync.py

@@ -22,7 +22,7 @@ def _sync_cmd(manifest: ComponentManifest) -> list[str] | None:
         return None
 
     match run.runner:
-        case "python_uv_tool" | "python_module":
+        case "python":
             return ["uv", "sync"]
         case "node":
             return [run.package_manager, "install"]
@@ -80,13 +80,14 @@ def run_sync(args: argparse.Namespace) -> int:
     installed_dirs: set[Path] = set()
 
     for name, manifest in config.components.items():
-        # Determine source directory — from tool.source or manifest.source
-        source = None
-        if manifest.tool and manifest.tool.source:
-            source = manifest.tool.source
-        elif manifest.run and manifest.run.runner == "python_uv_tool" and manifest.source_dir:
-            source = manifest.source_dir
+        # Install if: has install.path, or is a python runner service
+        if not (
+            (manifest.install and manifest.install.path)
+            or (manifest.run and manifest.run.runner == "python")
+        ):
+            continue
 
+        source = manifest.source_dir
         if not source:
             continue