ui/phase-14: rename planet end-to-end + order read-back

Wires the first end-to-end command through the full pipeline:
inspector rename action → local order draft → user.games.order
submit → optimistic overlay on map / inspector → server hydration
on cache miss via the new user.games.order.get message type.

Backend: GET /api/v1/user/games/{id}/orders forwards to engine
GET /api/v1/order. Gateway parses the engine PUT response into the
extended UserGamesOrderResponse FBS envelope and adds
executeUserGamesOrderGet for the read-back path. Frontend ports
ValidateTypeName to TS, lands the inline rename editor + Submit
button, and exposes a renderedReport context so consumers see the
overlay-applied snapshot.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/internal/server/handlers_user_games.go

@@ -136,6 +136,64 @@ func (h *UserGamesHandlers) Orders() gin.HandlerFunc {
 	}
 }
 
+// GetOrders handles GET /api/v1/user/games/{game_id}/orders?turn=N.
+// Forwards to the engine's `GET /api/v1/order` with the player rebound
+// from the runtime mapping. The query parameter `turn` is required
+// and must be a non-negative integer; the engine itself enforces the
+// same rule, but rejecting up-front saves a network hop.
+//
+// On `204 No Content` the handler answers `204` so the gateway can
+// translate the FBS envelope to `found = false`. On `200` the
+// engine's body is forwarded verbatim — the gateway re-encodes the
+// JSON `UserGamesOrder` shape into FlatBuffers.
+func (h *UserGamesHandlers) GetOrders() gin.HandlerFunc {
+	if h == nil || h.runtime == nil || h.engine == nil {
+		return handlers.NotImplemented("userGamesGetOrders")
+	}
+	return func(c *gin.Context) {
+		gameID, ok := parseGameIDParam(c)
+		if !ok {
+			return
+		}
+		turnRaw := c.Query("turn")
+		if turnRaw == "" {
+			httperr.Abort(c, http.StatusBadRequest, httperr.CodeInvalidRequest, "turn is required")
+			return
+		}
+		turn, err := strconv.Atoi(turnRaw)
+		if err != nil || turn < 0 {
+			httperr.Abort(c, http.StatusBadRequest, httperr.CodeInvalidRequest, "turn must be a non-negative integer")
+			return
+		}
+		userID, ok := userid.FromContext(c.Request.Context())
+		if !ok {
+			httperr.Abort(c, http.StatusBadRequest, httperr.CodeInvalidRequest, "user id missing")
+			return
+		}
+		ctx := c.Request.Context()
+		mapping, err := h.runtime.ResolvePlayerMapping(ctx, gameID, userID)
+		if err != nil {
+			respondGameProxyError(c, h.logger, "user games get orders", ctx, err)
+			return
+		}
+		endpoint, err := h.runtime.EngineEndpoint(ctx, gameID)
+		if err != nil {
+			respondGameProxyError(c, h.logger, "user games get orders", ctx, err)
+			return
+		}
+		body, status, err := h.engine.GetOrder(ctx, endpoint, mapping.RaceName, turn)
+		if err != nil {
+			respondEngineProxyError(c, h.logger, "user games get orders", ctx, body, err)
+			return
+		}
+		if status == http.StatusNoContent {
+			c.Status(http.StatusNoContent)
+			return
+		}
+		c.Data(http.StatusOK, "application/json", body)
+	}
+}
+
 // Report handles GET /api/v1/user/games/{game_id}/reports/{turn}.
 func (h *UserGamesHandlers) Report() gin.HandlerFunc {
 	if h == nil || h.runtime == nil || h.engine == nil {