Feat/airline logos opensky refresh (#6)

* feat: keyboard shortcuts, click-to-select, pulse/glow, smooth orbit resume

* feat: add camera controls and enhance keyboard shortcuts help; improve flight card accessibility

* feat: enhance flight layers and keyboard shortcuts; improve airline data structure

* feat: expand airline logos and refresh flight/OpenSky mapping

* feat: import expanded airport dataset

* perf: reduce trail recomputation and soften airport dots

* perf: speed up 9k airport search with index + cache

* docs: add community standards and contribution templates

* docs: enforce issue templates via config

* chore: ignore only .github/agents

* fix: improve airport visibility and stable map marker

public/airline-logos/ethiopian-airlines.svg

@@ -0,0 +1 @@
+<svg fill="#648B1A" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Ethiopian Airlines</title><path d="M18.308 11.603c2.39-1.456 4.239-2.53 4.966-4.355 1.544-4.17.363-5.865-1.104-4.564C20.293 4.506 11.478 13.754.195 20.257c-.172.098-.2.322.558.091 4.48-1.572 14.23-6.705 17.555-8.745zm1.823-.333c.942-.586 1.976-.237.316 2.466-1.126 1.662-1.905 2.63-4.92 3.544-2.075.785-9.768 3.024-15.157 3.675-.401.033-.524-.114-.128-.246 5.135-1.306 17.984-8.21 19.889-9.44zm-8.977 10.47c2.204-.072 3.862.242 5.725-1.73 1.95-2.02 1.72-3.07.544-2.743-1.745.524-8.111 2.69-15.622 3.735-.338.046-.256.226.14.25 5.018.474 6.911.51 9.213.488Z"/></svg>