Control station: Logging View + ADJ Viewer

[JavierRibaldelRio]

Summary

Introduces the Logging View feature for the control station, plus supporting frontend-kit additions reused across other views.

Logging View

• New view with Simple and Normal modes (Normal mode still WIP)
• Sidebar redesign (VS Code style): board/measurement selection, session folder picker, drag & drop of series, context menu
• Plot Studio (Simple mode): right-side charting panel fed by series loaded from the left sidebar, dark-mode theming for Plotly charts, cronogram support for enum/bool series, redesigned stats section
• Export: PNG and PDF export (PDF includes ADJ link and formatted date, custom file naming)
• Performance work: FFT scoped per-plot instead of per-series, optimizations for large/colossal LCU measurements
• Electron app: "About" section, wiring to include the new Logging View

frontend-kit

• New segmented control component
• variableBadgeClasses helper (ints → orange, bools → purple, ...), moved from testing-view
• New src/outreach folder centralizing team logos; flashing-view, competition-view, and testing-view updated to consume logos from frontend-kit

Other

• flashing-view dev server moved to port 9002 (was clashing with competition-view on 9001)
• Removed outdated legacy competition-view/packet-sender/common-front code as part of the control-station cleanup this branch builds on

Related

• The ADJ Viewer feature is a separate, standalone view built on top of this branch — see feat(ADJ-Viewer): ADJ viewer #598