feature: mirror all diagnostics to syslog, add VESA fallback for gfxd crashes

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- syslogDump now outputs all five diagnostic sections (Fault Info,
  CPU Registers, Process Info, System Info, Call Stack) to serial,
  matching the on-screen BSOD content
- panic() detects if the crash occurred in the gfxd process and
  falls back to rendering the BSOD directly to the VESA framebuffer
  via driver.video text drawing, bypassing LVGL entirely
- Add DrawChar, DrawString, DrawHex, DrawInt to driver.video for
  8x16 bitmap font rendering directly to the framebuffer
- Export SHOULD_CRASH flag from svc.gfxd interface so test commands
  can trigger a deliberate gfxd crash
- Add app.divzero with DIV0, PF, and CRASHGFXD test commands
- Update doc/src/core/core.panic.md and doc/src/driver/video/driver.video.md

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t3hn3rd committed 2026-03-10 12:35:22 +00:00

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commit aa28d62e03

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src/core/core.panic.pas

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