Initial commit — keysat.xyz landing site

Static HTML + SVG/PNG assets for the public marketing site at
keysat.xyz. Deployed via FileBrowser to the operator's StartOS at
websites/keysat-xyz-landing/.

Files:
- index.html — main landing
- support.html — Lightning donation + on-chain BTC for sponsors
- assets/ — SVG marks, PNG icon/thumbnail, favicon

Stack: hand-written HTML + CSS, no build step, no JS framework.
Matches the keysat-design-system tokens (cream paper, navy ink,
gold accents, Archivo display + Inter body + JetBrains Mono).

Private repo during alpha; will go public alongside v1.0 launch.

assets/keysat-mark-mono.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" fill="none">
+  
+  <ellipse cx="50" cy="22" rx="28" ry="5" fill="#1E3A5F"></ellipse>
+  <rect x="22" y="22" width="56" height="56" fill="none" stroke="#1E3A5F" stroke-width="3"></rect>
+  <ellipse cx="50" cy="78" rx="28" ry="5" fill="#1E3A5F"></ellipse>
+  <line x1="32" y1="36" x2="68" y2="36" stroke="#1E3A5F" stroke-width="1.5" stroke-linecap="round"></line>
+  <line x1="32" y1="44" x2="62" y2="44" stroke="#1E3A5F" stroke-width="1.5" stroke-linecap="round"></line>
+  <circle cx="42" cy="60" r="6" fill="none" stroke="#1E3A5F" stroke-width="2.5"></circle>
+  <rect x="48" y="58.5" width="14" height="3" fill="#1E3A5F"></rect>
+  <rect x="58" y="61.5" width="2" height="4" fill="#1E3A5F"></rect>
+  <rect x="62" y="61.5" width="2" height="3" fill="#1E3A5F"></rect>
+</svg>