fix(ui-e2e): Phase 29 map-toggles spec passes across all four projects

Three independent bugs in `tests/e2e/map-toggles.spec.ts` made the
fresh-Phase-29 suite red on CI #216:

1. `visiblePlanets` filtered on `p.id < 1_000_000`, which JS interprets
   in signed space — high-bit-prefix primitives (cargo route 0x80…,
   battle 0xa0…, bombing 0xc0…) are stored as negative Numbers and
   leaked into the planet list. Filter switched to a `0 < id < 1e7`
   window that matches the engine planet-number range exactly.
2. The `visibleHighBitCount` helper now ToUint32-converts the id
   before masking so the bitmask comparison works regardless of
   whether the id is stored as positive or negative.
3. The fog and wrap-mode tests read the renderer state synchronously
   after the click — the Svelte effect re-runs asynchronously, so the
   tests saw stale state. Both now `waitForFunction` on the canonical
   "settled" signal: empty fog circles for the fog flip, and a new
   `getMapMode()` debug accessor for the wrap-mode remount.

Renderer side: registers a `MapModeProvider` next to the existing
camera / fog providers and exposes `getMapMode()` through the debug
surface.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

ui/frontend/src/lib/active-view/map.svelte

@@ -69,6 +69,7 @@ preference the store already manages.
 		installRendererDebugSurface,
 		registerMapCameraProvider,
 		registerMapFogProvider,
+		registerMapModeProvider,
 		registerMapPickStateProvider,
 		registerMapPrimitivesProvider,
 		type MapCameraSnapshot,
@@ -505,11 +506,15 @@ preference the store already manages.
 			const detachFog = registerMapFogProvider(() => ({
 				circles: currentFogCircles.map((c) => ({ ...c })),
 			}) satisfies MapFogSnapshot);
+			const detachMode = registerMapModeProvider(() =>
+				handle === null ? null : handle.getMode(),
+			);
 			detachDebugProviders = (): void => {
 				detachPrim();
 				detachPick();
 				detachCamera();
 				detachFog();
+				detachMode();
 			};
 			mountedTurn = report.turn;
 			mountedGameId = targetGameId;