ui/phase-17: ship-class CRUD without calc

Phase 17 lights up the ship-class table and designer active views,
extends the order-draft pipeline with createShipClass and
removeShipClass commands, and projects pending Save/Delete actions
through applyOrderOverlay so the table reflects the player's
intent before auto-sync lands. The plan is corrected in the same
patch: per game/rules.txt, ship classes are designed once and
cannot be edited — the engine has no Update command, so the UI
exposes only Create + Delete.

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

ui/frontend/tests/inspector-planet-production.test.ts

@@ -78,6 +78,19 @@ function localPlanet(
 	};
 }
 
+function shipClass(
+	overrides: Partial<ShipClassSummary> & Pick<ShipClassSummary, "name">,
+): ShipClassSummary {
+	return {
+		drive: 0,
+		armament: 0,
+		weapons: 0,
+		shields: 0,
+		cargo: 0,
+		...overrides,
+	};
+}
+
 function mountProduction(
 	planet: ReportPlanet,
 	localShipClass: ShipClassSummary[] = [],
@@ -167,8 +180,8 @@ describe("planet inspector — production controls", () => {
 
 	test("Build-Ship click on a class emits a SHIP setProductionType command", async () => {
 		const ui = mountProduction(localPlanet({ number: 7 }), [
-			{ name: "Scout" },
-			{ name: "Destroyer" },
+			shipClass({ name: "Scout" }),
+			shipClass({ name: "Destroyer" }),
 		]);
 		await fireEvent.click(
 			ui.getByTestId("inspector-planet-production-segment-ship"),
@@ -185,7 +198,7 @@ describe("planet inspector — production controls", () => {
 
 	test("re-clicks on the same planet collapse to the latest entry via the store", async () => {
 		const ui = mountProduction(localPlanet({ number: 7 }), [
-			{ name: "Scout" },
+			shipClass({ name: "Scout" }),
 		]);
 		await fireEvent.click(
 			ui.getByTestId("inspector-planet-production-segment-industry"),
@@ -224,7 +237,7 @@ describe("planet inspector — production controls", () => {
 		for (const tc of cases) {
 			const ui = mountProduction(
 				localPlanet({ number: 1, production: tc.production }),
-				[{ name: "Scout" }],
+				[shipClass({ name: "Scout" })],
 			);
 			const ids: ReadonlyArray<
 				"industry" | "materials" | "research" | "ship"
@@ -268,7 +281,7 @@ describe("planet inspector — production controls", () => {
 	test("ship class sub-row matches when production equals a class name", async () => {
 		const ui = mountProduction(
 			localPlanet({ number: 1, production: "Scout" }),
-			[{ name: "Scout" }, { name: "Destroyer" }],
+			[shipClass({ name: "Scout" }), shipClass({ name: "Destroyer" })],
 		);
 		expect(
 			ui.getByTestId("inspector-planet-production-ship-Scout").classList