Add team tasks: several agents in one worktree sharing a board

internal/store/store.go

@@ -476,6 +476,9 @@ ALTER TABLE inbox_responses DROP COLUMN client;
 ALTER TABLE inbox_responses DROP COLUMN exit_code;
 `}, {"add-user-default-model", `
 ALTER TABLE users ADD COLUMN default_model TEXT NOT NULL DEFAULT 'claude-opus-5-5';
+`}, {"add-team-members", `
+ALTER TABLE agent_sessions ADD COLUMN member TEXT NOT NULL DEFAULT '';
+ALTER TABLE task_inputs ADD COLUMN member TEXT NOT NULL DEFAULT '';
 `}}
 
 const (
@@ -1305,7 +1308,7 @@ func (s *Store) Participants(ctx context.Context, taskID string) ([]api.Particip
 	rows, err := s.db.QueryContext(ctx, `
 		SELECT u.login, u.display_name, u.git_name, u.git_email
 		FROM events e JOIN users u ON u.login = e.actor
-		WHERE e.task_id = ? AND (e.kind = 'user.message' OR (e.kind = 'task.created' AND json_extract(e.payload, '$.forked_from') IS NOT NULL))
+		WHERE e.task_id = ? AND (e.kind IN ('user.message', 'board.posted') OR (e.kind = 'task.created' AND json_extract(e.payload, '$.forked_from') IS NOT NULL))
 		GROUP BY u.login ORDER BY min(e.seq)
 	`, taskID)
 	if err != nil {
@@ -1349,6 +1352,17 @@ func (s *Store) TaskEvents(ctx context.Context, taskID string, after int64, limi
 	return scanEvents(rows)
 }
 
+func (s *Store) BoardPosts(ctx context.Context, taskID string, after int64) ([]api.Event, error) {
+	rows, err := s.db.QueryContext(ctx, `
+		SELECT `+eventColumns+`
+		FROM events WHERE task_id = ? AND kind = 'board.posted' AND seq > ? ORDER BY seq
+	`, taskID, after)
+	if err != nil {
+		return nil, err
+	}
+	return scanEvents(rows)
+}
+
 func (s *Store) TaskEventsTail(ctx context.Context, taskID string, limit int) ([]api.Event, error) {
 	rows, err := s.db.QueryContext(ctx, `
 		SELECT * FROM (SELECT `+eventColumns+` FROM events WHERE task_id = ? ORDER BY seq DESC LIMIT ?) ORDER BY seq
@@ -1478,9 +1492,9 @@ func (s *Store) CreateSession(ctx context.Context, sess api.AgentSession, projec
 	}
 	return s.write(ctx, func(tx *sql.Tx, emit emitFunc) error {
 		_, err := tx.ExecContext(ctx, `
-			INSERT INTO agent_sessions (id, task_id, owner, vendor, model, vendor_session_id, state, role, created_by, created_at, forked_from, forked_at)
-			VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-		`, sess.Id, nullable(sess.TaskId), sess.Owner, string(sess.Vendor), sess.Model, sess.VendorSessionId, string(sess.State), string(sess.Role), sess.CreatedBy, formatTime(sess.CreatedAt), forkedFrom, forkedAt)
+			INSERT INTO agent_sessions (id, task_id, owner, vendor, model, vendor_session_id, state, role, member, created_by, created_at, forked_from, forked_at)
+			VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, sess.Id, nullable(sess.TaskId), sess.Owner, string(sess.Vendor), sess.Model, sess.VendorSessionId, string(sess.State), string(sess.Role), sess.Member, sess.CreatedBy, formatTime(sess.CreatedAt), forkedFrom, forkedAt)
 		if err != nil {
 			return err
 		}
@@ -1836,7 +1850,7 @@ const taskStateExpr = `CASE
 		END
 		FROM agent_sessions s
 		WHERE s.task_id = tasks.id AND s.role != 'reviewer' AND s.state != 'completed'
-		ORDER BY s.created_at DESC LIMIT 1
+		ORDER BY s.state = 'running' DESC, s.subagents > 0 DESC, s.created_at DESC LIMIT 1
 	), 'no_agent')
 END`
 
@@ -1895,7 +1909,7 @@ const projectColumns = `id, name, repo_path, default_branch, remote, created_by,
 
 const taskColumns = `id, project_id, title, merge_title, branch, worktree_path, base_ref, port_base, color, status, created_by, created_at, closed_at, merge_commit, todo_item, forked_from, forked_at, merge_queued_at, workflow_name, workflow_run, workflow_stage, parent_task_id, parent_merge_by, merge_after_review_by != '', state, merging_by != '' OR finalizing != '', discard_state != '' AND status = 'active', (SELECT coalesce(max(seq), 0) FROM events WHERE events.task_id = tasks.id AND kind = 'turn.ended' AND json_extract(payload, '$.summary') = 1)`
 
-const sessionColumns = `id, coalesce(task_id, ''), owner, vendor, model, vendor_session_id, state, role, created_by, created_at, forked_from, forked_at, subagents`
+const sessionColumns = `id, coalesce(task_id, ''), owner, vendor, model, vendor_session_id, state, role, member, created_by, created_at, forked_from, forked_at, subagents`
 
 type scanner interface {
 	Scan(dest ...any) error
@@ -1985,7 +1999,7 @@ func scanSession(row scanner) (api.AgentSession, error) {
 	createdAt := ""
 	forkedFrom := ""
 	forkedAt := ""
-	err := row.Scan(&sess.Id, &sess.TaskId, &sess.Owner, &vendor, &sess.Model, &sess.VendorSessionId, &state, &role, &sess.CreatedBy, &createdAt, &forkedFrom, &forkedAt, &sess.Subagents)
+	err := row.Scan(&sess.Id, &sess.TaskId, &sess.Owner, &vendor, &sess.Model, &sess.VendorSessionId, &state, &role, &sess.Member, &sess.CreatedBy, &createdAt, &forkedFrom, &forkedAt, &sess.Subagents)
 	if err != nil {
 		return sess, err
 	}