Switch to prefixed IDs and tell agents which Mac a message came from

internal/store/leadnotes.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"g.fc.run/ai/byre/internal/api"
+	"g.fc.run/ai/byre/internal/ids"
 )
 
 func (s *Store) LeadNotes(ctx context.Context, owner string) ([]api.LeadNote, error) {
@@ -51,7 +52,7 @@ func (s *Store) SaveLeadNote(ctx context.Context, owner, id, projectID, text, ac
 	}
 	err := s.write(ctx, func(tx *sql.Tx, emit emitFunc) error {
 		if id == "" {
-			n.Id = NewID()
+			n.Id = ids.New(ids.LeadNote)
 			_, err := tx.ExecContext(ctx, `INSERT INTO lead_notes (id, owner, text, project_id, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?)`,
 				n.Id, owner, text, projectID, formatTime(at), formatTime(at))
 			if err != nil {