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>

pkg/model/order/order.go

@@ -18,6 +18,12 @@ const MessageTypeUserGamesCommand = "user.games.command"
 // FlatBuffers `order.UserGamesOrder`.
 const MessageTypeUserGamesOrder = "user.games.order"
 
+// MessageTypeUserGamesOrderGet is the authenticated gateway message
+// type used to read back the player's stored order for a given turn
+// through `GET /api/v1/user/games/{game_id}/orders?turn=N`. The
+// signed payload is a FlatBuffers `order.UserGamesOrderGet`.
+const MessageTypeUserGamesOrderGet = "user.games.order.get"
+
 // UserGamesCommand is the typed payload of MessageTypeUserGamesCommand.
 // `GameID` selects the running engine container; `Commands` is the
 // player command batch executed atomically by the engine. The `Actor`
@@ -54,6 +60,21 @@ func (o *UserGamesOrder) UnmarshalBinary(data []byte) error {
 	return json.Unmarshal(data, o)
 }
 
+// UserGamesOrderGet is the typed payload of
+// MessageTypeUserGamesOrderGet. `Turn` is mandatory and must be
+// non-negative; the caller pulls it from the lobby record at game
+// boot. Backend rebinds the player from the runtime player mapping
+// before forwarding to the engine.
+type UserGamesOrderGet struct {
+	// GameID identifies the running game whose order is being
+	// read back.
+	GameID uuid.UUID `json:"game_id"`
+
+	// Turn selects the turn the stored order belongs to. Negative
+	// values are invalid.
+	Turn int `json:"turn"`
+}
+
 func AsCommand[E DecodableCommand](c DecodableCommand) (result E, ok bool) {
 	if v, ok := c.(E); ok {
 		return v, true