feat(ui): F8-05 — game-mode chrome cleanup + inspector compact rows (#48)

Drains six F8 polish items (parent #43) in one feature:

а) Chrome cleanup
- п.6 — remove the AccountMenu (settings/sessions/theme/language/logout
  ∼ rudimentary in-game) and replace it with a single icon-button
  light/dark theme toggle. The toggle flips an in-memory `theme.override`;
  game-shell unmount calls `theme.clearOverride()` so the lobby (and
  any re-entry) re-projects the persisted lobby choice.
- п.8 — remove the wrap-scrolling radio from the map gear popover. The
  per-game `wrapMode` store and the renderer's no-wrap path stay in
  place for a future engine-side topology feature; only the UI surface
  is dropped (wrap is a server-side concept, not a per-session UI
  affordance).

б) Inspector compact rows (single idiom: select + ✓ apply / ✗ cancel,
or contextual edit/remove/add)
- п.13 — planet name is now click-to-edit: clicking the name opens an
  inline `<input>` + ✓ confirm icon; Escape cancels; the explicit
  Rename action button and Cancel button are gone.
- п.14 — production becomes one row: primary `<select>` picks
  industry/materials/research/ship, conditional secondary `<select>`
  picks the target (tech / science / ship class) for research and
  ship contexts. Apply is gated until row state differs from the
  planet's current effective production; auto-submit-on-click is
  replaced by the apply-gate.
- п.16 — cargo routes collapse to one row: a single dropdown
  (COL/CAP/MAT/EMP plus a placeholder that absorbs the old section
  title) and contextual action buttons (add / edit + remove) to the
  right. After a successful pick or remove the dropdown stays on the
  type the user just acted on.
- п.32 — stationed ship groups hoist the race column into a dropdown
  above the table. The dropdown seeds with the player's own race when
  local groups are stationed here, otherwise the first race
  alphabetically; rendered only when more than one race is in orbit.
  The race column is dropped in both single- and multi-race modes —
  the dropdown's value already names the active race.

Tests: unit and Playwright e2e updated for every changed test-id and
flow; new coverage added for `theme.override`, the in-game toggle, the
apply-gate behaviour, and the stationed-race dropdown. i18n keys for
the removed menu items, the wrap radios, the cargo title, and the
explicit `rename.cancel` are dropped from both locales; new
`game.shell.theme_toggle.*`, `production.main/target.*`,
`production.apply/cancel`, `cargo.placeholder`, and
`ship_groups.race_filter.aria` keys land.

Docs synced: `docs/FUNCTIONAL.md` §6.7 + `docs/FUNCTIONAL_ru.md`
mirror drop the torus / no-wrap radio mention; `ui/docs/design-system.md`
documents the lobby-owned persisted picker + the in-game ephemeral
override channel.

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

ui/frontend/tests/game-shell-header.test.ts

@@ -2,11 +2,12 @@
 // the identity strip (`<race> @ <game>`, falling back to `?` while
 // the lobby / report calls are in flight), the Phase 26 turn
 // navigator (`← turn N →` with a popover of every turn), the
-// view-menu, and the account-menu. The tests assert the visible
-// copy, that every view-menu entry switches the active in-game view
-// via `activeView.select(...)` (the single-URL app-shell has no
-// per-view routes), and that the Logout entry of the account-menu
-// calls `session.signOut("user")`.
+// view-menu, and the in-game ephemeral light/dark theme toggle (F8-05
+// replaced the previous account-menu — language picker and logout
+// now live in the lobby). The tests assert the visible copy, that
+// every view-menu entry switches the active in-game view via
+// `activeView.select(...)`, and that the theme toggle flips the
+// in-memory `theme.override` channel.
 
 import "@testing-library/jest-dom/vitest";
 import { fireEvent, render } from "@testing-library/svelte";
@@ -20,7 +21,7 @@ import {
 } from "vitest";
 
 import { i18n } from "../src/lib/i18n/index.svelte";
-import { session } from "../src/lib/session-store.svelte";
+import { theme } from "../src/lib/theme/theme.svelte";
 import Header from "../src/lib/header/header.svelte";
 import {
 	GAME_STATE_CONTEXT_KEY,
@@ -74,10 +75,11 @@ beforeEach(() => {
 	i18n.resetForTests("en");
 	activeViewSelectSpy.mockReset();
 	appScreenGoSpy.mockReset();
-	vi.spyOn(session, "signOut").mockResolvedValue(undefined);
+	theme.clearOverride();
 });
 
 afterEach(() => {
+	theme.clearOverride();
 	vi.restoreAllMocks();
 });
 
@@ -95,7 +97,7 @@ describe("game-shell header", () => {
 			"turn ?",
 		);
 		expect(ui.getByTestId("view-menu-trigger")).toBeInTheDocument();
-		expect(ui.getByTestId("account-menu-trigger")).toBeInTheDocument();
+		expect(ui.getByTestId("game-mode-theme-toggle")).toBeInTheDocument();
 	});
 
 	test("renders the live race / game / turn from GameStateStore", () => {
@@ -194,22 +196,18 @@ describe("game-shell header", () => {
 		expect(appScreenGoSpy).toHaveBeenCalledWith("lobby");
 	});
 
-	test("account-menu Logout triggers session.signOut('user')", async () => {
+	test("theme toggle flips theme.override between light and dark", async () => {
 		const ui = render(Header, {
 			props: { sidebarOpen: false, onToggleSidebar: () => {} },
 		});
-		await fireEvent.click(ui.getByTestId("account-menu-trigger"));
-		await fireEvent.click(ui.getByTestId("account-menu-logout"));
-		expect(session.signOut).toHaveBeenCalledWith("user");
-	});
-
-	test("account-menu language picker switches the i18n locale", async () => {
-		const ui = render(Header, {
-			props: { sidebarOpen: false, onToggleSidebar: () => {} },
-		});
-		await fireEvent.click(ui.getByTestId("account-menu-trigger"));
-		const select = ui.getByTestId("account-menu-language-select");
-		await fireEvent.change(select, { target: { value: "ru" } });
-		expect(i18n.locale).toBe("ru");
+		const toggle = ui.getByTestId("game-mode-theme-toggle");
+		const initialResolved = theme.resolved;
+		const opposite = initialResolved === "light" ? "dark" : "light";
+		await fireEvent.click(toggle);
+		expect(theme.override).toBe(opposite);
+		expect(theme.resolved).toBe(opposite);
+		await fireEvent.click(toggle);
+		expect(theme.override).toBe(initialResolved);
+		expect(theme.resolved).toBe(initialResolved);
 	});
 });