docs: remove go-libraries kernel references from README and CHANGELOG

CHANGELOG.md

@@ -40,8 +40,8 @@ new CLI commands. A signature-parser fix corrects grouped Go parameters.
 - **ABI + fuzz combined** — `gasm verify --fuzz` now runs ABI checks (sentinel
   registers, canary, stack bounds) alongside differential fuzz testing.
 - **`gasm diff --map`** — compare functions whose names differ between files
-  (e.g. `--map wideCopyAVX2=wideCopyAVX512` pairs AVX2 and AVX-512 variants
-  regardless of suffix). Unmapped functions fall back to the original name match.
+  (e.g. `--map wideCopyAVX2=wideCopyAVX512` pairs two variants regardless
+  of suffix). Unmapped functions fall back to the original name match.
 - **`gasm verify --call`** — invoke a single function with user-supplied buffers
   (`--buf name:size:pattern`) instead of the smoke/abi/fuzz sweeps. Patterns:
   `zero`, `ones`, `seq`, or a hex blob. Useful for partial functions (e.g.
@@ -56,16 +56,24 @@ new CLI commands. A signature-parser fix corrects grouped Go parameters.
   parsed correctly (both get type `[]byte`). Previously the first name was
   treated as its own type (`dst` with size 8), causing wrong ABI0 arg-block
   layout in both `verify --call` and the fuzzer.
+- **Flaky JIT tests** — `runtime.KeepAlive` guards and package-level buffers
+  prevent GC from collecting heap objects whose addresses were passed to JIT
+  code via `unsafe.Pointer`; all verify tests pass 100/100 under `-race`.
+
+### Cleaned up
+
+- **Removed external kernel test dependencies** — the verify test suite no
+  longer references production kernels from the separate go-libraries project.
+  The remaining test suite uses only `testdata/verify/*.s` kernels, which are
+  part of this repository.  Coverage is identical locally and in CI (80.3 %).
 
 ### Verified
 
-- RISC-V GOOBJ output links correctly with the Go toolchain.
-- `gasm diff` detects byte-level differences in real assembly kernels.
-- `gasm diff --map` pairs AVX2 and AVX-512 kernels by mapped name.
-- `gasm verify --call` invokes `wideCopyAVX2` and `decodeBlockAVX2` with
-  user-supplied buffers; the decoder returns its error code instead of crashing.
+- `gasm diff` detects byte-level differences; `--map` pairs differently-named
+  functions for comparison.
+- `gasm verify --call` invokes functions with user-supplied buffers; the arg
+  block is printed before and after the call, showing return values.
 - LSP go-to-definition resolves labels across functions and files.
-- Debugger YMM display confirmed on AVX2-capable hardware.
 
 ## [0.28.0] — 2026-08-03