FABRIC.md: check off 4.4c/4.4d/4.4e/4.4f, root-cause and reframe 4.4g

Three-arch acceptance boot (amd64/aarch64/riscv64) clean, all reaching
[Hera] ok>, plus amd64 screendump evidence for each item -- checking off
4.4c (console_fb_init wiring), 4.4d ([VMName] prefix reaching the
framebuffer), 4.4e (\r/\n fix), and 4.4f (glyph-flip fix, previous commit).
Screendump verification itself stays amd64-only pending future
aarch64/riscv64 screendump tooling; Captain Bob accepted that gap as
non-blocking for these checkboxes.

4.4g reframed from "anomaly, not root-caused" to a design decision: traced
the missing hundreds of lines of boot output to console_fb_init() running
after capsule_birth_mama() (which births the whole Tripod fleet and their
self-tests) rather than before it, so that output is serial-only by
construction -- not a scroll/CSI-parser bug. Left unchecked pending a call
on whether to reorder console_fb_init() earlier in boot.

Also commits routine artifacts from this session's three-arch runs:
capsules/BLOCK_MAP.md (regenerated manifest), disk/artemis.img (Artemis
writes on every boot), DOE CSVs, and the corresponding QEMU serial logs.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

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