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/router.go

@@ -261,6 +261,7 @@ func registerUserRoutes(router *gin.Engine, instruments *metrics.Instruments, de
 	userGames := group.Group("/games")
 	userGames.POST("/:game_id/commands", deps.UserGames.Commands())
 	userGames.POST("/:game_id/orders", deps.UserGames.Orders())
+	userGames.GET("/:game_id/orders", deps.UserGames.GetOrders())
 	userGames.GET("/:game_id/reports/:turn", deps.UserGames.Report())
 
 	userSessions := group.Group("/sessions")