Root cause of bmn-assoc failure: < operator missing from core-bindings.
All loop conditions in HAMT hash map use (< i idx) which silently
failed, causing loops to return nil. Added core-<, core->, core-<=,
core->= bound to Janet's <, >, <=, >=.
Also removed leftover test files from debugging session.
Add binding-get helper that walks Janet table prototype chain.
resolve-sym now uses two-stage lookup: direct get first,
then prototype walk as fallback. This fixes access to outer
let bindings from inner let forms without breaking fn parameter
resolution (which uses direct table keys).
All 9 test suites pass including macro-test.
- Add SCI as git submodule at vendor/sci (replaces absolute path)
- Fix defrecord macro: emit array-map at expansion time, no interleave dep
- Remove stale test files (test-ctor, test-parser, edamame_shim)
- All 317 SCI forms load with 0 failures, 9 test suites green
Janet's (put table key nil) silently drops the key. This caused
nil-valued fn/let/loop/macro parameters to be invisible to resolve-sym,
making them fall through to global symbol resolution.
Added bind-put helper that uses :jolt/nil sentinel for nil values,
and resolve-sym unwraps it back to nil.
