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/src/lib/active-view/report/format.ts

@@ -0,0 +1,75 @@
+// Shared number / planet formatters for the Phase 23 Report View
+// sections. Inlined in 10+ components, so factoring keeps each
+// section component focused on its data shape. The formatters
+// match the conventions of the per-entity tables (tabular numerals,
+// one-decimal percent without a `%` suffix — the header carries the
+// unit) so the report's grids read the same way as the
+// table-races / table-sciences views.
+
+import type { ReportPlanet } from "../../../api/game-state";
+
+/**
+ * formatPercent renders a `[0, 1]` fraction as a one-decimal
+ * percent (without a `%` suffix — the column header carries the
+ * unit). Matches the convention used by `table-races.svelte` and
+ * `table-sciences.svelte`.
+ */
+export function formatPercent(fraction: number): string {
+	return (fraction * 100).toLocaleString(undefined, {
+		minimumFractionDigits: 0,
+		maximumFractionDigits: 1,
+	});
+}
+
+/**
+ * formatCount renders an integer-ish value (population, industry,
+ * planet count, …) without fractional digits and with locale-aware
+ * thousand separators.
+ */
+export function formatCount(value: number): string {
+	return value.toLocaleString(undefined, {
+		minimumFractionDigits: 0,
+		maximumFractionDigits: 0,
+	});
+}
+
+/**
+ * formatFloat renders a floating-point value with up to two
+ * fractional digits. Used for stockpiles, distances, cost, mass —
+ * everything the engine emits as a `Float` that is not a fraction.
+ */
+export function formatFloat(value: number): string {
+	return value.toLocaleString(undefined, {
+		minimumFractionDigits: 0,
+		maximumFractionDigits: 2,
+	});
+}
+
+/**
+ * formatVotes renders a vote weight with up to two decimal digits —
+ * mirrors the races table's column convention so the cumulative
+ * vote totals line up across views.
+ */
+export function formatVotes(value: number): string {
+	return value.toLocaleString(undefined, {
+		minimumFractionDigits: 0,
+		maximumFractionDigits: 2,
+	});
+}
+
+/**
+ * planetLabel renders a planet reference as `#<number> (<name>)` if
+ * the planet is known in the report, or just `#<number>` if the
+ * lookup fails (visibility lost between turns, foreign-only data).
+ * Sections that show planet numbers without a name column —
+ * Ships in Production, Bombings — rely on this resolver to keep
+ * cell width tight.
+ */
+export function planetLabel(
+	number: number,
+	planets: readonly ReportPlanet[],
+): string {
+	const p = planets.find((row) => row.number === number);
+	if (p === undefined || p.name === "") return `#${number}`;
+	return `#${number} (${p.name})`;
+}