Stage 17: backend defect fixes (nudge code, TG name, robot names/timing, multi-device push, move-duration metric + admin analytics)

- #3 nudge-on-own-turn: distinct result code nudge_own_turn + i18n (was reused 'not_your_turn')
- #2 sanitize connector registration name to the editable format; Player/Игрок-XXXXX fallback
- #5 variant-aware robot name pools (composed full/colloquial first + surname forms; ru gets <=20% latin)
- #4 move-number-aware robot move timing (early 1-5min -> late 10-90min, skew k=4)
- #7 emit move event to the actor too (multi-device sync); opponent_moved stays in-app only
- #1 live game_move_duration{variant,phase} histogram + admin console per-user min/avg/max columns and an inline-SVG move-time-by-move-number chart (offline from the journal)
- ProvisionRobot bypasses editor name validation (system names like 'Peter J.')

backend/internal/server/dto_test.go

@@ -46,6 +46,7 @@ func TestStatusForError(t *testing.T) {
 	}{
 		"not a player":   {game.ErrNotAPlayer, http.StatusForbidden, "not_a_player"},
 		"not your turn":  {game.ErrNotYourTurn, http.StatusConflict, "not_your_turn"},
+		"nudge own turn": {social.ErrNudgeOnOwnTurn, http.StatusConflict, "nudge_own_turn"},
 		"illegal play":   {engine.ErrIllegalPlay, http.StatusUnprocessableEntity, "illegal_play"},
 		"email taken":    {account.ErrEmailTaken, http.StatusConflict, "email_taken"},
 		"code mismatch":  {account.ErrCodeMismatch, http.StatusUnauthorized, "code_invalid"},

backend/internal/server/handlers.go

@@ -148,8 +148,10 @@ func statusForError(err error) (int, string) {
 		return http.StatusNotFound, "not_found"
 	case errors.Is(err, game.ErrNotAPlayer), errors.Is(err, social.ErrNotParticipant):
 		return http.StatusForbidden, "not_a_player"
-	case errors.Is(err, game.ErrNotYourTurn), errors.Is(err, social.ErrNudgeOnOwnTurn):
+	case errors.Is(err, game.ErrNotYourTurn):
 		return http.StatusConflict, "not_your_turn"
+	case errors.Is(err, social.ErrNudgeOnOwnTurn):
+		return http.StatusConflict, "nudge_own_turn"
 	case errors.Is(err, game.ErrFinished), errors.Is(err, social.ErrGameNotActive):
 		return http.StatusConflict, "game_finished"
 	case errors.Is(err, game.ErrGameActive):

backend/internal/server/handlers_admin_console.go

@@ -82,6 +82,7 @@ func (s *Server) consoleUsers(c *gin.Context) {
 		return
 	}
 	view := adminconsole.UsersView{Pager: adminconsole.NewPager(page, adminPageSize, total)}
+	ids := make([]uuid.UUID, 0, len(accs))
 	for _, a := range accs {
 		kind := "registered"
 		if a.IsGuest {
@@ -91,6 +92,17 @@ func (s *Server) consoleUsers(c *gin.Context) {
 			ID: a.ID.String(), DisplayName: a.DisplayName, Kind: kind,
 			Language: a.PreferredLanguage, Guest: a.IsGuest, CreatedAt: fmtTime(a.CreatedAt),
 		})
+		ids = append(ids, a.ID)
+	}
+	if stats, err := s.games.MoveDurationStats(ctx, ids); err == nil {
+		for i := range view.Items {
+			if st, ok := stats[ids[i]]; ok && st.Moves > 0 {
+				view.Items[i].HasMoveStats = true
+				view.Items[i].MoveMin = adminconsole.FormatDuration(st.MinSecs)
+				view.Items[i].MoveAvg = adminconsole.FormatDuration(st.AvgSecs)
+				view.Items[i].MoveMax = adminconsole.FormatDuration(st.MaxSecs)
+			}
+		}
 	}
 	s.renderConsole(c, "users", "users", "Users", view)
 }
@@ -134,6 +146,13 @@ func (s *Server) consoleUserDetail(c *gin.Context) {
 			view.Games = append(view.Games, gameRow(g))
 		}
 	}
+	if pts, err := s.games.MoveDurationByOrdinal(ctx, id); err == nil && len(pts) > 0 {
+		cps := make([]adminconsole.ChartPoint, len(pts))
+		for i, p := range pts {
+			cps[i] = adminconsole.ChartPoint{Ordinal: p.Ordinal, Min: p.MinSecs, Max: p.MaxSecs, Avg: p.AvgSecs}
+		}
+		view.MoveChart = adminconsole.MoveDurationChart(cps)
+	}
 	s.renderConsole(c, "user_detail", "users", acc.DisplayName, view)
 }