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/tests/e2e/storage-keypair-persistence.spec.ts

@@ -19,6 +19,7 @@ import type {
 	MapPickStateSnapshot,
 	MapPrimitiveSnapshot,
 } from "../../src/lib/debug-surface.svelte";
+import type { WrapMode } from "../../src/map/world";
 
 // Mirrors the surface mounted by `routes/__debug/store/+page.svelte`.
 // Other Playwright specs (`game-shell.spec.ts`, `order-composer.spec.ts`,
@@ -48,6 +49,7 @@ interface DebugSurface {
 	getMapPickState(): MapPickStateSnapshot;
 	getMapCamera(): MapCameraSnapshot | null;
 	getMapFog(): MapFogSnapshot;
+	getMapMode(): WrapMode | null;
 }
 
 declare global {