Constraint: Factory branch must contain only the verified lvgl_demo artifact.
Rejected: Source handoff branch | User requested the new single-file delivery path.
Confidence: high
Scope-risk: narrow
Directive: Keep sv6fast as a single-file lvgl_demo delivery branch.
Tested: SV6FAST battery and zeroing regression scripts, Python compilation, clean AArch64 build, local and remote SHA256.
Not-tested: Real-device battery-state and zeroing-display validation.
