Let the lead keep notes on how its user works

internal/store/store.go

@@ -429,6 +429,15 @@ CREATE INDEX tasks_parent ON tasks(parent_task_id) WHERE parent_task_id != '';
 ALTER TABLE reviews ADD COLUMN finding_states TEXT NOT NULL DEFAULT '{}';
 UPDATE events SET payload = json_set(payload, '$.finding_states', json('{}'))
 WHERE kind IN ('review.started', 'review.finished') AND json_type(payload, '$.finding_states') IS NULL;
+`}, {"add-lead-notes", `
+CREATE TABLE lead_notes (
+	id TEXT PRIMARY KEY,
+	owner TEXT NOT NULL REFERENCES users(login),
+	text TEXT NOT NULL,
+	created_at TEXT NOT NULL,
+	updated_at TEXT NOT NULL
+);
+CREATE INDEX lead_notes_owner ON lead_notes(owner, created_at);
 `}}
 
 const (