Lumbridge Simulate Engine — the city, and the licence it can actually ship under

LSE is the third of the three, beside lumbridge-compute and lumbridge-bench: a
3D engine for walkable places. This first commit is the outside of the world —
San Francisco — plus the seams the inside will attach to.

The engine renders a City and a list of Markers and knows nothing else. It does
not know markers are usually companies and it will never learn that "rejected"
is red; that mapping lives in an adapter. Which is what lets one renderer serve
a private map, a public one, and a self-hoster with no Lumbridge account, none
of them a fork of the others.

Three things were designed around the licence rather than discovered after it,
because each one is a promise Apache 2.0 makes that is easy to break by
accident. No trademarks in the repo — logos are fetched at runtime, and
public/logos/ is gitignored. No OpenStreetMap-derived coordinates, which is why
every coastline in cities/sf.ts was traced by hand: Nominatim output is ODbL,
share-alike, and would attach to the whole pack. And no FlightRadar24 client —
their terms forbid scraping and redistribution, so flights are an interface
with a simulator and open community ADS-B behind it.

The privacy constraint and the licence constraint turned out to want the same
thing. Geocoded company positions and pipeline status both stay behind Workie's
API; the open repo holds the city and the renderer. The tempting shortcut —
commit an sf-companies.json — breaks both at once.

Ported out of Workie, where a 3D city engine had no business living. Workie's
/live is deleted rather than deprecated.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

package.json

@@ -0,0 +1,22 @@
+{
+  "name": "@lumbridge/simulate",
+  "version": "0.1.0",
+  "description": "Lumbridge Simulate Engine (LSE) — a 3D engine for walkable places. Cities from above, buildings from inside.",
+  "license": "Apache-2.0",
+  "type": "module",
+  "main": "src/index.ts",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc --noEmit && vite build",
+    "typecheck": "tsc --noEmit",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "three": "^0.182.0"
+  },
+  "devDependencies": {
+    "@types/three": "^0.182.0",
+    "typescript": "^5.7.2",
+    "vite": "^7.3.6"
+  }
+}