repo: remove broken bump-z/bump-y targets, fix tools/README.md stale fbtest.c row

bump-z/bump-y referenced STARFORTH_VERSION_MAJOR/MINOR/PATCH/STARFORTH_VERSION_STRING
fields that never existed in the generated include/version.h, so they could never
have worked. Removed rather than fixed since CLAUDE.md already documents hand-editing
VERSION/LITHOS_VERSION in Makefile.starkernel as the real convention.

tools/README.md documented a fbtest.c that never existed in any commit; replaced with
the ttftest.c row that actually matches the tools/ directory.

Part of the pre-Artemis closeout pass (FABRIC-2.md Section C).

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

tools/README.md

@@ -9,7 +9,7 @@ toolchain.
 |------|---------|
 | `mkcapsule.c` | Assembles `.4th` capsule files into `capsule_generated.c` baked into the kernel image. Invoked automatically by `Makefile.starkernel`. |
 | `mkcapsule` | Compiled host binary (rebuilt on demand). |
-| `fbtest.c` | Host framebuffer render test — VT100/framebuffer unit tests, no QEMU needed. |
+| `ttftest.c` | Host TTF glyph-rendering test — font rasterization unit tests, no QEMU needed. |
 | `pe_reloc_gen.py` | Generates PE32+ relocation tables for the UEFI loader. |
 | `svg_to_png.py` | Renders every tracked `.svg` in the repo to a same-named `.png` via headless Chromium; leaves the source `.svg` untouched, run manually. |
 | `hermes_smoke.sh` | Hermes v1 hosted smoke test — swaps in the Hermes init capsule and prints values for manual inspection. |