[Crazy RoboTaxi] Add HDmap view, optionally show prompt in HUD

[aidanfnv]

Closes #553

Split off from #553, this change adds a key to show the HDmap like the pre-API-port demo had. It also adds an option to have the HUD show the current prompt being used.

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[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge; no new actionable issues were introduced since the previous review, and both prior HUD-layout findings are resolved.

Summary

Adds an optional HD-map conditioning view and configurable current-prompt HUD display to Crazy Robotaxi.

• Publishes frame-aligned HD-map tensors alongside generated video and BEV output.
• Adds keyboard and gamepad bindings for toggling the HD-map view during gameplay.
• Propagates the active generation prompt into HUD frames and renders it within a height-capped panel.
• Updates settings handling and tests for controls, rendering, prompt layout, and live-edit integration.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  Model[Model generation step] --> Video[Generated video]
  Model --> HDMap[HD-map conditioning]
  Model --> Prompt[Active prompt]
  Video --> Presentation[Presentation manager]
  HDMap --> Presentation
  Prompt --> HUD[Frame-aligned HUD state]
  Input[HD-map toggle input] --> HUD
  Presentation --> Select{HD-map view enabled?}
  HUD --> Select
  Select -->|No| VideoOutput[Display generated video]
  Select -->|Yes| HDMapOutput[Display HD-map conditioning]

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_{Reviews (13) · Last reviewed commit: "[crazy-robotaxi] Offset live-edit HUD be..."}

[aidanfnv]

/ok to test c3206c6

[aidanfnv]

/ok to test ef7a4d7

[spaingnv]

/ok to test 3816371

[aidanfnv]

/ok to test 861b318

[spaingnv]

LGTM. New tests cover the HD-map toggle, exact conditioning presentation, and the current-prompt overlay.

[aidanfnv]

Thank you for the reviews @spaingnv !