Feat v0.6.3 dead code sweep (#38)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/sandbox/workflow_module.go

@@ -1,6 +1,6 @@
 package sandbox
 
-// workflow_module.go — v0.30.2 CS1, v0.3.2 instance API
+// workflow_module.go
 //
 // The workflow module lets extensions read workflow definitions,
 // manage instances, and programmatically advance workflow stages.
@@ -27,7 +27,6 @@ import (
 // BuildWorkflowModule creates the "workflow" Starlark module for a package.
 // Requires the workflow.access permission.
 //
-// v0.3.2: added get_instance and list_instances for read-only instance access.
 // Mutating operations (start/advance/cancel) are available via HTTP API;
 // Starlark builtins for them will be added when the engine interface is
 // extracted to a shared package to avoid circular imports.
@@ -87,7 +86,7 @@ func workflowGetDef(ctx context.Context, stores store.Stores) func(*starlark.Thr
 	}
 }
 
-// ── Instance Read API (v0.3.2) ──────────────
+// ── Instance Read API ──────────────
 
 func workflowGetInstance(ctx context.Context, stores store.Stores) func(*starlark.Thread, *starlark.Builtin, starlark.Tuple, []starlark.Tuple) (starlark.Value, error) {
 	return func(_ *starlark.Thread, _ *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
@@ -187,5 +186,5 @@ func goValToStarlark(v interface{}) starlark.Value {
 	}
 }
 
-// workflowRoute routes the workflow to a named stage (v0.35.0).
+// workflowRoute routes the workflow to a named stage.
 // Starlark: workflow.route(channel_id, target_stage, reason)