Hojun-Cho
5f87c60e6c
selfhost: retire dotchain bundle workaround (closes #17)
dotchain struct + bundle pre-declares retired. dotchainresolve now
takes 6 direct out-params; per-iter locals declared inline. Bootstrap
ww2==ww3==ww4 byte-identical — end-to-end validation of session's
N_DOT / N_INDEX / TK_AMP / fldloadop fixes.
i64 widths retained on out-params via task #19 workaround (i32 deref-
stores leave caller slot upper 4B stale, MOVQ reads zero-extend to
garbage). Documented in selfhost/CLAUDE.md active-workarounds.