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

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+## Our Commitment
+We are committed to a respectful, inclusive, and constructive environment for everyone participating in this project.
+
+## Expected Behavior
+- Be respectful and professional.
+- Provide constructive feedback.
+- Focus on technical discussion and project goals.
+- Assume good intent and communicate clearly.
+
+## Unacceptable Behavior
+- Harassment, discrimination, or personal attacks.
+- Threatening, abusive, or disruptive conduct.
+- Sharing private information without consent.
+
+## Reporting
+Report concerns to the maintainers through private repository contact channels. Reports will be reviewed promptly and handled confidentially where possible.
+
+## Enforcement
+Maintainers may remove, edit, or reject contributions and interactions that violate this Code of Conduct.