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/inspectors/planet.svelte

@@ -14,7 +14,10 @@ field with five buttons.
 -->
 <script lang="ts">
 	import { getContext, tick } from "svelte";
-	import type { ReportPlanet } from "../../api/game-state";
+	import type {
+		ReportPlanet,
+		ShipClassSummary,
+	} from "../../api/game-state";
 	import { i18n, type TranslationKey } from "$lib/i18n/index.svelte";
 	import {
 		ORDER_DRAFT_CONTEXT_KEY,
@@ -24,11 +27,13 @@ field with five buttons.
 		validateEntityName,
 		type EntityNameInvalidReason,
 	} from "$lib/util/entity-name";
+	import Production from "./planet/production.svelte";
 
 	type Props = {
 		planet: ReportPlanet;
+		localShipClass: ShipClassSummary[];
 	};
-	let { planet }: Props = $props();
+	let { planet, localShipClass }: Props = $props();
 
 	const kindKeyMap: Record<ReportPlanet["kind"], TranslationKey> = {
 		local: "game.inspector.planet.kind.local",
@@ -191,6 +196,10 @@ field with five buttons.
 		</div>
 	{/if}
 
+	{#if planet.kind === "local"}
+		<Production {planet} {localShipClass} />
+	{/if}
+
 	<dl class="fields">
 		{#if planet.kind === "other" && planet.owner !== null}
 			<div class="field" data-testid="inspector-planet-field-owner">
@@ -253,7 +262,7 @@ field with five buttons.
 			</div>
 		{/if}
 
-		{#if planet.production !== null}
+		{#if planet.production !== null && planet.kind !== "local"}
 			<div class="field" data-testid="inspector-planet-field-production">
 				<dt>{i18n.t("game.inspector.planet.field.production")}</dt>
 				<dd>{productionLabel}</dd>