Initial backup of root workspace files

Glue files not covered by subproject repos: top-level docs, logo,
keysat-design-system, and crosscheck tests. Subproject folders are
gitignored (each has its own Gitea remote).

keysat-design-system/ui_kits/marketing/README.md

@@ -0,0 +1,28 @@
+# Keysat — Marketing UI Kit
+
+A redesign of the single-page marketing site in the Keysat visual system: navy + cream, paper texture, classical type. Same content as the draft (`assets/keysat-draft-site.html`), new visual language.
+
+## Files
+
+- `index.html` — the full landing page (single-page marketing site).
+
+## Sections
+
+1. **Sticky header** — wordmark + nav + "Install" CTA.
+2. **Hero** — eyebrow → display headline with a gold-underlined "self-hosted" → lede → CTA row → trust strip ("Runs on Start9 · Pays via BTCPay · Verifies offline").
+3. **Value props** — 6-card grid; Lucide icons; gold underline on titles.
+4. **How it works** — numbered 5-step flow with gold serif numerals on cream paper cards.
+5. **Integration code** — language tabs (Rust / TypeScript / Python) over a navy code block.
+6. **Sovereign by default** — two-column "what you keep / what's outside the box".
+7. **Install** — marketplace + sideload, gold-bordered command card.
+8. **Footer** — navy surface, wordmark, links.
+
+## Iconography
+
+Lucide via `unpkg.com/lucide@latest`. Replaces the draft site's emoji 1:1:
+- ⚡ → `zap`
+- 🔐 → `key-round`
+- 📡 → `wifi-off`
+- 🎫 → `ticket`
+- 🏷️ → `tag`
+- 🛠️ → `wrench`