Add suggested upstream-issue comments for FIXED items

Drafts a short comment per resolved upstream issue (kherud/java-llama.cpp)
for manual paste, citing the fixing PR/commit and key file paths.
Covers 28 issues marked FIXED / FIXED-AS-DOCUMENTED / PARTIALLY FIXED in
docs/history/49be664_open_issues.md, plus a context note for #89.

https://claude.ai/code/session_016bmY4i7V3oABtDwqYKR6g6

Author: claude