ui/phase-15: planet inspector production controls + order-draft collapse

Adds the second end-to-end command (`setProductionType`) with a
collapse-by-`planetNumber` rule on the order draft, the segmented
production-controls component on the planet inspector, the FBS
encoder/decoder pair for `CommandPlanetProduce`, and the
`localShipClass` projection on `GameReport`. Forecast number is
deferred and tracked in the new `ui/docs/calc-bridge.md`.

ui/frontend/src/lib/sidebar/order-tab.svelte

@@ -19,6 +19,7 @@ Tests exercise the tab through `__galaxyDebug.seedOrderDraft`
 <script lang="ts">
 	import { getContext } from "svelte";
 	import { i18n, type TranslationKey } from "$lib/i18n/index.svelte";
+	import { productionDisplayFromCommand } from "../../api/game-state";
 	import {
 		ORDER_DRAFT_CONTEXT_KEY,
 		OrderDraftStore,
@@ -49,6 +50,14 @@ Tests exercise the tab through `__galaxyDebug.seedOrderDraft`
 					planet: String(cmd.planetNumber),
 					name: cmd.name,
 				});
+			case "setProductionType":
+				return i18n.t("game.sidebar.order.label.planet_production", {
+					planet: String(cmd.planetNumber),
+					target: productionDisplayFromCommand(
+						cmd.productionType,
+						cmd.subject,
+					),
+				});
 		}
 	}