ui/phase-23: turn-report view with twenty sections and TOC

Replaces the Phase 10 report stub with a scrollable orchestrator that
renders every FBS array as a dedicated section (galaxy summary, votes,
player status, my/foreign sciences, my/foreign ship classes, battles,
bombings, approaching groups, my/foreign/uninhabited/unknown planets,
ships in production, cargo routes, my fleets, my/foreign/unidentified
ship groups). A sticky table of contents (a <select> on mobile),
"back to map" affordance, IntersectionObserver-driven active-section
highlight, and SvelteKit Snapshot-based scroll save/restore round out
the view.

GameReport gains six new fields (players, otherScience, otherShipClass,
battleIds, bombings, shipProductions); decodeReport, the synthetic-
report loader, the e2e fixture builder, and EMPTY_SHIP_GROUPS extend
in lockstep. ~90 new i18n keys land in en + ru together.

The legacy-report parser is extended to populate the new sections from
the dg/gplus text formats (Your Sciences, <Race> Sciences, <Race> Ship
Types, Bombings, Ships In Production). Ships-in-production prod_used
is derived through a new pkg/calc.ShipBuildCost helper; the engine's
controller.ProduceShip refactors to call the same helper without any
behaviour change (engine tests stay unchanged and green). Battles
remain in the parser's Skipped list — the legacy text carries no
stable per-battle UUID.

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

ui/frontend/tests/helpers/empty-ship-groups.ts

@@ -1,16 +1,23 @@
 // EMPTY_SHIP_GROUPS supplies empty arrays / zero defaults for the
 // ancillary report fields added in Phase 19 (ship-groups + fleets),
-// Phase 21 (sciences), and Phase 22 (races / diplomacy / voting).
+// Phase 21 (sciences), Phase 22 (races / diplomacy / voting), and
+// Phase 23 (full player roster, foreign sciences, foreign ship
+// classes, battle ids, bombings, ships in production).
 // Test fixtures spread it into their report objects so the fixture
 // body still focuses on the fields under test, without forcing
 // every spec to enumerate the full GameReport surface.
 
 import type {
+	ReportBombing,
 	ReportIncomingShipGroup,
 	ReportLocalFleet,
 	ReportLocalShipGroup,
 	ReportOtherRace,
+	ReportOtherScience,
+	ReportOtherShipClass,
 	ReportOtherShipGroup,
+	ReportPlayer,
+	ReportShipProduction,
 	ReportUnidentifiedShipGroup,
 	ScienceSummary,
 } from "../../src/api/game-state";
@@ -26,6 +33,12 @@ export const EMPTY_SHIP_GROUPS: {
 	races: ReportOtherRace[];
 	myVotes: number;
 	myVoteFor: string;
+	players: ReportPlayer[];
+	otherScience: ReportOtherScience[];
+	otherShipClass: ReportOtherShipClass[];
+	battleIds: string[];
+	bombings: ReportBombing[];
+	shipProductions: ReportShipProduction[];
 } = {
 	localShipGroups: [],
 	otherShipGroups: [],
@@ -37,4 +50,10 @@ export const EMPTY_SHIP_GROUPS: {
 	races: [],
 	myVotes: 0,
 	myVoteFor: "",
+	players: [],
+	otherScience: [],
+	otherShipClass: [],
+	battleIds: [],
+	bombings: [],
+	shipProductions: [],
 };