The keyboard loop treated every display not owning the focused
history chart as a realtime target. One `Ctrl+G` could therefore
toggle unrelated cached symbols.
Match the focused chart explicitly before selecting its timeframe.
Factor startup registration and toggle routing into testable
helpers, and use scoped PyQt6 enums throughout the input path.
Deats,
- preserve independent 60s startup layers per display;
- toggle only the focused 1s or 60s chart;
- drive the production event relay with a real `QKeyEvent`.
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Gud Boi
b738c9f4f7