Persist issue read state and clear unread on open

packages/db/src/schema/index.ts

@@ -20,6 +20,7 @@ export { labels } from "./labels.js";
 export { issueLabels } from "./issue_labels.js";
 export { issueApprovals } from "./issue_approvals.js";
 export { issueComments } from "./issue_comments.js";
+export { issueReadStates } from "./issue_read_states.js";
 export { assets } from "./assets.js";
 export { issueAttachments } from "./issue_attachments.js";
 export { heartbeatRuns } from "./heartbeat_runs.js";