docs(asm): checkpoint comptime-call guard (1654)

current/CHECKPOINT-ASM.md

@@ -347,6 +347,11 @@ Orthogonal: **issue 0137** (no-`main` segfault).
   mishandles module-asm" checkpoint prose was corrected. Locked global-asm-under-
   JIT with `examples/1653-platform-asm-global-jit.sx` (`{ "target": "macos" }`, no
   aot, → 42). `zig build test` green (662 corpus, 446 unit).
+- (comptime guard) pinned the one genuine module-asm boundary:
+  `examples/1654-platform-asm-global-comptime-call.sx` — `#run` into a module-asm
+  symbol fails loud (`comptime extern call: symbol not found via dlsym`) because
+  the interpreter resolves externs via host dlsym before link. Arch-independent
+  (no `.build`). `zig build test` green (663 corpus, 446 unit).
 
 ## Known issues
 - **0138** — RESOLVED. `@const` (address-of a `::` comptime constant) yielded a