Bump LITHOS_VERSION to 1.5.4

Kernel version only — the embedded StarForth engine version (3.1.0) is left
alone since it tracks a vendored copy that has genuinely diverged from the
standalone StarForth repo, not something to auto-sync. Verified builds on
amd64, aarch64, and riscv64.

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

.claude/CLAUDE.md

@@ -197,7 +197,7 @@ Output: `build/<arch>/kernel/starkernel_loader.efi` + `build/<arch>/kernel/stark
 Two independently tracked version strings flow into the generated `include/version.h`:
 `VERSION` (`Makefile.starkernel` — the embedded StarForth engine version, currently `3.1.0`;
 note this does **not** auto-sync with the standalone StarForth repo's own version) and
-`LITHOS_VERSION` (`Makefile.starkernel` — the kernel version, currently `1.5.3`).
+`LITHOS_VERSION` (`Makefile.starkernel` — the kernel version, currently `1.5.4`).
 
 ### Build configuration (Kconfig — real, wired, not vestigial)
 

Makefile.starkernel

@@ -76,7 +76,7 @@ endif
 #   v1.5.x — framebuffer VT100 terminal/console milestone (current)
 #   v2.0.0 — StarForth SDK release; v2.x.x development begins from there
 VERSION       ?= 3.1.0
-LITHOS_VERSION ?= 1.5.3
+LITHOS_VERSION ?= 1.5.4
 
 # ==============================================================================
 # BUILD PATHS

README.md

@@ -1,4 +1,4 @@
-# LithosAnanke v1.5.3
+# LithosAnanke v1.5.4
 
 **UEFI-bootable FORTH microkernel.** Boots from firmware, initialises memory and interrupts, then runs the StarForth VM as its sole userspace runtime. No libc. No OS. Just stone and necessity.