ui/phase-21: sciences CRUD list, designer, and production-picker integration

Lights up the player-defined sciences feature: a table view with sort
and filter, a designer with four percent inputs and a strict
sum-equals-100 gate, and a Research-sub-row integration so the
planet production picker lists the user's sciences alongside the
four tech buttons. Phase 21 decisions are baked back into ui/PLAN.md
(no UpdateScience on the wire — write-once via createScience +
removeScience; percentages instead of fractions; sciences live under
the existing Research segment).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ui/frontend/src/lib/inspectors/planet.svelte

@@ -19,6 +19,7 @@ field with five buttons.
 		ReportOtherShipGroup,
 		ReportPlanet,
 		ReportRoute,
+		ScienceSummary,
 		ShipClassSummary,
 	} from "../../api/game-state";
 	import { i18n, type TranslationKey } from "$lib/i18n/index.svelte";
@@ -37,6 +38,7 @@ field with five buttons.
 	type Props = {
 		planet: ReportPlanet;
 		localShipClass: ShipClassSummary[];
+		localScience: ScienceSummary[];
 		routes: ReportRoute[];
 		planets: ReportPlanet[];
 		mapWidth: number;
@@ -49,6 +51,7 @@ field with five buttons.
 	let {
 		planet,
 		localShipClass,
+		localScience,
 		routes,
 		planets,
 		mapWidth,
@@ -221,7 +224,7 @@ field with five buttons.
 	{/if}
 
 	{#if planet.kind === "local"}
-		<Production {planet} {localShipClass} />
+		<Production {planet} {localShipClass} {localScience} />
 		<CargoRoutes
 			{planet}
 			{routes}