Rename FABRIC series: FABRIC.md->0, FABRIC-2.md->1, FABRIC-3.md->2, FABRIC-4.md unchanged

FABRIC.md -> FABRIC-0.md
FABRIC-2.md -> FABRIC-1.md
FABRIC-3.md -> FABRIC-2.md (the current/living document)
FABRIC-4.md unchanged (new #3 to follow separately)

Every cross-reference repo-wide updated to match, including doc-comment
citations inside kernel source (.c/.h) files -- done via an ordered
placeholder substitution (FABRIC-3.md->placeholder2, FABRIC-2.md->
placeholder1, FABRIC.md->placeholder0, then placeholders resolved to
final names) in a single pass per file to avoid double-shifting
already-renamed references.

One line in capsules/font.4th grew past the 64-char block-format limit
as a side effect of the longer filename; shortened it and reverified
with mkcapsule --lint (34/34 pass) before rebuilding.

Verified 3-arch boot to ok> (amd64/aarch64/riscv64, each in the
foreground) after the fix; logs and DoE CSVs from this session's
verification runs included per this repo's own audit-artifact
convention.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var

.claude/CLAUDE.md

@@ -10,12 +10,12 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 > **Superseded subsystem docs (Captain Bob, 2026-08-15):** `.claude/TRIPOD.md`,
 > `.claude/HERMES.md`, `.claude/ARTEMIS.md`, and `.claude/CONSOLE.md` are all superseded —
-> `FABRIC.md` and `FABRIC-2.md` (both design history/archival as of 2026-08-25) and
-> `FABRIC-3.md` (current/living, read this one first) are the sole authoritative source for
+> `FABRIC-0.md` and `FABRIC-1.md` (both design history/archival as of 2026-08-25) and
+> `FABRIC-2.md` (current/living, read this one first) are the sole authoritative source for
 > Tripod/Hermes/Artemis/Console work now. The four subsystem docs remain in the repo as
 > historical record only; each carries its own superseded-header pointing here. Do not treat
 > them as current, do not read them for design authority, and do not cite them in place of
-> `FABRIC.md`/`FABRIC-2.md`/`FABRIC-3.md`.
+> `FABRIC-0.md`/`FABRIC-1.md`/`FABRIC-2.md`.
 
 > **Scope:** This repo is LithosAnanke — the bare-metal UEFI kernel that boots StarForth
 > directly on hardware. StarForth (the hosted FORTH-79 VM) has its own separate repository
@@ -133,14 +133,14 @@ The word-level ACL system is fully implemented, including kernel parity. Key con
 - Measured overhead: +0.0054%–+0.0088% across all 9 cells; CV = 0.000%
 - Report confirmed to exist: `experiments/bare_metal/analysis/report/bare_metal_doe_report.pdf`
   (~2MB, with LaTeX source and figures) — patent support material
-- **Correction (found 2026-08-20/21, `FABRIC-2.md` §§M–T):** the "ACL-RWT" name itself was
+- **Correction (found 2026-08-20/21, `FABRIC-1.md` §§M–T):** the "ACL-RWT" name itself was
   wrong — the Rolling-Window-of-Truth mechanism it was named after was dead code, removed
   2026-07-08 (`ACL-RECHECK-RW` was never reachable — `acl_recheck()` only ever looks up the
   11-char `ACL-RECHECK`, never the 14-char `-RW` variant). What this campaign actually
   measured was the live `ACL-TTL` mechanism under a misleading name, and at `-O0`, before
   real compiler optimization landed. The corrected, current figure — same live mechanism,
   correct name, re-run on the current substrate — is **+0.0603% ACL-TTL enforcement overhead,
-  architecture-independent, CV=0.000%** (`FABRIC-2.md` §T, memory
+  architecture-independent, CV=0.000%** (`FABRIC-1.md` §T, memory
   `project_acl_ttl_overhead_final.md`). Use that number, not the one above.
 
 **Before writing or modifying any `.4th` capsule file**, read `experiments/bare_metal/README.md`