docs: the 12 duplicates deleted; README rewritten to the system as it is

Captain Bob's rulings, 2026-10-14: "delete" -- the duplicates listed in
DELETE-CANDIDATES.md are removed (the list stays as the record; the
formal tier's provenance comments repointed at the maintained copies) --
and "rewrite" the README: v2.1.0, the Tripod as Hera/Artemis/Hestia,
kernel-Hermes, identities on thumbdrives, the corrected ACL overhead,
1052-test POST and the current parity line, keyboards and storage, board
images carrying both systems and how to switch, and docs/README.md as
the way in.  The book is left as it is, to be reworked later.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/formal/vol2-kernel/ch03-acl-security.tex

@@ -1,5 +1,5 @@
 %% Vol II, Chapter 3 — ACL and Security Model
-%% SOURCE: docs/working/architecture/03-architecture/word-acl/DESIGN.md
+%% SOURCE: docs/reference/word-acl/DESIGN.md
 %%         .claude/CLAUDE.md (Word-Level ACL System section)
 %%         capsules/ACL.4th, capsules/zuse.4th
 
@@ -19,7 +19,7 @@
 \section{Two-Console Model}
 \label{vol2:sec:acl:consoles}
 
-%% SOURCE: docs/working/architecture/03-architecture/word-acl/DESIGN.md
+%% SOURCE: docs/reference/word-acl/DESIGN.md
 %% TODO(bob): describe the two permanent console layers:
 %%   - emergency console (ok>) — fault handler active
 %%   - zuse console (zuse)ok>) — superuser authenticated