feat: establish GeoIntel and ITWorx branding

docs/CODEX_EXECUTION_LOG.md

@@ -11289,3 +11289,18 @@ Validation:
 - frontend TypeScript check and production build: passed;
 - frontend dependency audit: zero vulnerabilities at the high threshold;
 - React review: named isolated component, derived configuration, no new state/effects, decorative content hidden from assistive technology.
+
+## 2026-07-26 - GeoIntel and ITWorx brand system
+
+Implemented:
+
+- replaced the former letter-based and mountain icons with one original GeoIntel Atlas mark combining a geographic lens, contour lines, compass direction and a measured location point;
+- applied the same source mark to the workbench rail, mobile header, landing header, SVG favicon, PNG browser fallback, Apple touch icon and Unraid application icon;
+- added the approved ITWorx.tech wordmark as a restrained maker signature in the workbench rail and public landing footer, explicitly crediting Jens without competing with the GeoIntel product identity;
+- kept the product icon vector-native for crisp rendering from favicon to server tile and generated matching PNG derivatives from that canonical SVG.
+
+Validation:
+
+- visually inspected the canonical 512 px render and the 32 px favicon derivative;
+- verified desktop and mobile landing-page renders with the new GeoIntel and ITWorx assets present, meaningful page content and no Vite error overlay; expected API 500 responses remained limited to the absent local backend;
+- React review confirmed named, isolated brand components and accessible decorative versus meaningful image semantics.

docs/TODO.md

@@ -890,3 +890,11 @@ This file now starts with the current implementation status. Older preparation/b
   selection-size budgets.
 - [ ] Provision additional national-scale baseline datasets before exposing
   more overview themes; do not synthesize regional detail at national scale.
+
+# Sprint 226 - GeoIntel and ITWorx brand system
+
+- [x] Replace the legacy GI/mountain artwork with a distinctive atlas and location mark.
+- [x] Use one canonical SVG across in-product branding and the browser favicon.
+- [x] Generate matching 32 px, Apple touch and Unraid PNG derivatives.
+- [x] Add the approved ITWorx.tech identity as a subtle Jens maker signature.
+- [ ] Revisit alternative lockups only when an approved GeoIntel brand guide exists.