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/iberia.svg

@@ -0,0 +1 @@
+<svg fill="#D7192D" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Iberia</title><path d="M9.356 11.563c4.53-3.254 9.047-5.217 13.547-5.723L24 2.978c-6.662 0-7.57 1.457-9.873 3.752M0 21.021c14.719 0 18.189-3.46 20.213-8.17l1.7-4.434c-4.958.143-12.441 3.066-17.673 8.324"/></svg>