refactor: centralize brand, company info, assets and Persian strings

Phase 1 of turning the game into the company landing page.

- Add src/config/company.js with name, tagline, contact, about and the
  product line, plus a brand palette built around #00a693 (contrast
  checked); placeholders are marked TODO(company).
- Add src/config/assets.js listing every loaded file with its expected
  format; placeholders are marked TODO(asset).
- Move all Persian interface text, dialogue, missions and scenery text
  into src/i18n/fa.js; components and game code read from it.
- Expose the palette as CSS variables (--color-primary and shades) and
  Tailwind colours, and use it for 3D materials and map drawings.
- Fix the arrival line that still called the manager's car a white
  pickup.
- Add tests that block hard-coded Persian text and low-contrast colours.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/pages/game/MissionList.jsx

@@ -1,11 +1,12 @@
 import { GameNode } from '@/components/shared/GameNode.jsx';
 import { ViewLists } from './ViewLists.jsx';
+import { strings } from '@/i18n/fa.js';
 /** @typedef {{nodes:object,actions:object}} MissionListProps */
 /** Presents the MissionList using the current interface snapshot. */
 export function MissionList({ nodes, actions }) {
   return (
     <GameNode as="aside" id="objectives" model={nodes['objectives']}>
-      <h2>{'مأموریت‌ها'}</h2>
+      <h2>{strings.status.missions}</h2>
       <GameNode as="ol" id="mission-list" model={nodes['mission-list']}>
         <ViewLists
           id="mission-list"