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/openapi.yaml

@@ -1023,7 +1023,11 @@ paths:
               $ref: "#/components/schemas/EngineOrder"
       responses:
         "200":
-          description: Engine order validation result passed through.
+          description: |
+            Engine order validation result passed through. Body is the
+            engine's `UserGamesOrder` shape — game_id, updatedAt, and
+            the per-command `cmd[]` list with `cmdApplied` /
+            `cmdErrorCode` populated by the engine.
           content:
             application/json:
               schema:
@@ -1036,6 +1040,46 @@ paths:
           $ref: "#/components/responses/NotImplementedError"
         "500":
           $ref: "#/components/responses/InternalError"
+    get:
+      tags: [User]
+      operationId: userGamesGetOrders
+      summary: Read the player's stored order for a turn
+      description: |
+        Forwards `GET /api/v1/order` against the engine container.
+        The caller always knows the current turn from the lobby
+        record at game boot, so `turn` is required.
+      security:
+        - UserHeader: []
+      parameters:
+        - $ref: "#/components/parameters/XUserID"
+        - $ref: "#/components/parameters/GameID"
+        - name: turn
+          in: query
+          required: true
+          description: Turn number whose stored order to fetch. Non-negative.
+          schema:
+            type: integer
+            format: int32
+            minimum: 0
+      responses:
+        "200":
+          description: |
+            Engine returned the stored order for this player + turn.
+            Body is the engine's `UserGamesOrder` shape.
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/PassthroughObject"
+        "204":
+          description: No order has been stored for this player on this turn.
+        "400":
+          $ref: "#/components/responses/InvalidRequestError"
+        "404":
+          $ref: "#/components/responses/NotFoundError"
+        "501":
+          $ref: "#/components/responses/NotImplementedError"
+        "500":
+          $ref: "#/components/responses/InternalError"
   /api/v1/user/games/{game_id}/reports/{turn}:
     get:
       tags: [User]