feat(worktree): add managed workspace cloning (#30117)

packages/core/src/policy.ts

@@ -16,6 +16,7 @@ export class Info extends Schema.Class<Info>("Policy.Info")({
 export interface Interface {
   readonly load: (statements: Info[]) => EffectRuntime.Effect<void>
   readonly evaluate: (action: string, resource: string, fallback: Effect) => EffectRuntime.Effect<Effect>
+  readonly hasStatements: () => boolean
 }
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/v2/Policy") {}
@@ -30,6 +31,7 @@ export const layer = Layer.effect(
       load: EffectRuntime.fn("Policy.load")(function* (input) {
         statements = input
       }),
+      hasStatements: () => statements.length > 0,
       evaluate: EffectRuntime.fn("Policy.evaluate")(function* (action, resource, fallback) {
         return (
           statements.findLast(