feat: add science extension pack

[keys-i]

Summary

Add the typed Scripts dashboard extension pack for the native science orbit, waveform, and point-cloud views.

Part of #23

Scope

• bin/
• dev/
• lib/
• sys/
• Documentation or repository settings

Testing

Commands run:

bash -n run.sh
bash run.sh --self-test
uv run dev/gui.py --self-test

Tested systems and interpreter versions:

macOS Darwin 25.5.0
Python 3.14.7

Checklist

• The change is focused and contains no unrelated files.
• The code is clean and comments explain intent or risk.
• New or changed behaviour has a repeatable test or documented manual check.
• Help text and dependencies are current.
• Destructive behaviour and elevated permissions are clearly disclosed.
• No credentials, private data, or machine-specific paths are included.

Reviewer Notes

Stacked on #28 and requires the matching keys-tools science binary.