fix(state): delete key from recordsByKey on instance disposal (#8252)

packages/opencode/src/project/state.ts

@@ -58,6 +58,7 @@ export namespace State {
       tasks.push(task)
     }
     entries.clear()
+    recordsByKey.delete(key)
     await Promise.all(tasks)
     disposalFinished = true
     log.info("state disposal completed", { key })