Merge origin/main into german/navara

Main's work since the last merge runs on the globe contract where this
branch draws through it:

- Satellites take main's classes, sensors, ground-track bearings and
  world time through contract points and rings; launches take the world
  timeline. The satellite's cockpit subject dims, copies positions and
  refocuses through the contract.
- Flights, military and vessels keep main's photos, retry cool-downs,
  world-clock motion and the ship bridge. Trail seeding in the shared
  aircraft tracking reads each layer's clock.
- Traffic's flow lines and single build draw as ground sets; transit
  keeps dated credits and the new cities; CCTV opens the nearest camera,
  and the Quebec overlay projects and tests the horizon through the
  contract. Bikeshare's manager cleanup moved into its current lifecycle.
- Draw keeps main's mark actions across engine switches.
- The world clock in src/time is plain numbers again: Julian dates come
  from src/geo, the frame loop is injected, and the binding to Cesium's
  viewer clock lives in src/globe/cesium/worldTime.js. Navara's sky and
  sun follow the world time; live feeds keep the real time.
- The cockpit's orbital view, with its sensor zoom, ground focus and
  satellite switching, stays Cesium-only for now: Navara hides its entry.
  Its Cesium calls live in src/globe/cesium/orbital.js. The ship bridge's
  finest-detail waterline sampling is Cesium-only too; Navara samples
  loaded geometry and detailed terrain. Both are in KNOWN-ISSUES.
- Main's tests that built a Cesium scene by hand run on the fake engine.
- The boundary manifest is regenerated, the coupling baseline records
  the orbital and bridge code, and the main-chunk baseline is raised to
  the merged size: main itself grew its main chunk by 93,959 bytes
  (gzip -9) since the previous merge base.

package.json

@@ -83,6 +83,7 @@
     "@happy-dom/global-registrator": "^20.14.6",
     "@vitejs/plugin-vue": "^5.2.4",
     "@vue/test-utils": "^2.5.1",
+    "flag-icons": "7.5.0",
     "happy-dom": "^20.14.6",
     "prettier": "3.9.6",
     "puppeteer": "^25.16.0",
@@ -97,6 +98,7 @@
     "./infrastructure/lod": "./src/data/localGeojsonLod.js",
     "./application": "./src/app/application.js",
     "./application/viewer": "./src/globe/cesium/viewer.js",
+    "./time": "./src/time/worldClock.js",
     "./build/vite": {
       "node": "./build/vite.js"
     },
@@ -104,6 +106,7 @@
       "node": "./server/providers/live.js"
     },
     "./sources/adsb-lol": "./src/data/adsbLolFallback.js",
+    "./sources/planespotters": "./src/data/planespottersPhoto.js",
     "./server/providers/places": {
       "node": "./server/providers/places.js"
     },