refactor(v3): the block subsystem is one chain again

blk_chain_default, blk_chain_new and blk_chain_select (0e761cb1) were for
a node's own drive, which was withdrawn on 2026-10-07 (docs/v4.0.0/MESH.md
8.5).  They are taken out.  What remains of that change is that
blk_subsys_init takes no VM.

Accepted on the v3 configuration: amd64, aarch64 and riscv64 reach the
zuse prompt, no UNKNOWN WORD, PARITY:M7.1a hash 0x08873e0f44b7cb2a on all
three, as before.  logs/20261007-082647, -082752, -082938.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
rajames
2026-10-07 08:30:38 -04:00
co-authored by Claude Opus 5.5
parent d5b7235464
commit 7c06bdfdb6
5 changed files with 27447 additions and 30 deletions
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