giles e475222099 Merge eval.sx + frames.sx + cek.sx into single evaluator.sx ...

The core spec is now one file: spec/evaluator.sx (2275 lines).
Three parts:
  Part 1: CEK frames — state and continuation frame constructors
  Part 2: Evaluation utilities — call, parse, define, macro, strict
  Part 3: CEK machine — the sole evaluator

Deleted:
- spec/eval.sx (merged into evaluator.sx)
- spec/frames.sx (merged into evaluator.sx)
- spec/cek.sx (merged into evaluator.sx)
- spec/continuations.sx (dead — CEK handles shift/reset natively)

Updated bootstrappers (JS + Python) to load evaluator.sx as core.
Removed frames/cek from SPEC_MODULES (now part of core).

Bundle size: 392KB → 377KB standard, 418KB → 403KB full.
All tests unchanged: JS 747/747, Full 864/870, Python 679/679.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-15 13:43:48 +00:00

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