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/inspector-tab.svelte

@@ -38,11 +38,14 @@ from the Phase 10 stub.
 		if (report === undefined || report === null) return null;
 		return report.planets.find((p) => p.number === sel.id) ?? null;
 	});
+	const localShipClass = $derived(
+		renderedReport?.report?.localShipClass ?? [],
+	);
 </script>
 
 <section class="tool" data-testid="sidebar-tool-inspector">
 	{#if selectedPlanet !== null}
-		<Planet planet={selectedPlanet} />
+		<Planet planet={selectedPlanet} {localShipClass} />
 	{:else}
 		<h3>{i18n.t("game.sidebar.tab.inspector")}</h3>
 		<p>{i18n.t("game.sidebar.empty.inspector")}</p>