Extend the bitmap font pipeline with the Chinese Joker glyph subset and encode supported UTF-8 text for Tonc TTE. Move the affine map clear of the expanded font, add a compile-time VRAM overlap guard, and cover every custom glyph with host tests.
* Fixed to truncate as "1.234M" instead of "1234K"
* Optimized by switching to strings to avoid divisions
* Changed FP constants to strings
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>