feat: send email notifications for missed messages

- New cron job in cluster
- Handle presence and other concerns
- Toggle in app to disable email notifications
- Handles other edge cases such as cooldown period
- Simple html email with simple message

Closes #117

go/internal/network/repository.go

@@ -35,6 +35,7 @@ type repository interface {
 	getMemberHumanIds(ctx context.Context, networkID string) ([]string, error)
 	getNetworksForHuman(ctx context.Context, humanId string) ([]*Network, error)
 	isMember(ctx context.Context, networkID, humanId string) (bool, error)
+	listAll(ctx context.Context) ([]*Network, error)
 
 	// Invitations
 	createInvitation(ctx context.Context, networkID, email string) error
@@ -202,6 +203,37 @@ func (r *repositoryImpl) isMember(ctx context.Context, networkID, humanId string
 	return isMember, err
 }
 
+func (r *repositoryImpl) listAll(ctx context.Context) ([]*Network, error) {
+	rows, err := r.pool.Query(ctx,
+		`SELECT id, name, admin_human_id, created_at FROM networks`,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var networks []*Network
+	for rows.Next() {
+		var n Network
+		if err := rows.Scan(&n.ID, &n.Name, &n.AdminHumanId, &n.CreatedAt); err != nil {
+			return nil, err
+		}
+		networks = append(networks, &n)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	for _, n := range networks {
+		n.MemberHumanIds, err = r.getMemberHumanIds(ctx, n.ID)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return networks, nil
+}
+
 // Invitation methods
 
 func (r *repositoryImpl) createInvitation(ctx context.Context, networkID, email string) error {