docs(work): close sandcastle-dispatch-v1 epic

docs/work/sandcastle-dispatch-v1/02-dispatch-planner/_story.md

@@ -3,7 +3,7 @@ id: 02-dispatch-planner
 epic: sandcastle-dispatch-v1
 title: Dispatch planner — finds next ready bullet, prints plan
 type: technical-story
-status: todo
+status: done
 feature: scripts
 depends-on: [01-sandcastle-install]
 blocks: [03-dispatch-execute, 04-dispatch-cli-wiring]
@@ -11,6 +11,6 @@ blocks: [03-dispatch-execute, 04-dispatch-cli-wiring]
 
 ## Tasks
 
-- [ ] findNextTask() — returns { epic, story, bullet, storyContent } or null
-- [ ] Tests
-- [ ] CLI: printPlan() — prints the dispatch plan
+- [x] findNextTask() — returns { epic, story, bullet, storyContent } or null
+- [x] Tests
+- [x] CLI: printPlan() — prints the dispatch plan