giles d0b3b86823 HS: implicit variable declaration, console mock, increment/decrement fix ...

Integration:
- hs-collect-vars: scan compiled SX for set! targets, collect symbols
- hs-handler: pre-declare collected variables in closure let-bindings
  so increment/decrement work on first use (variable persists across
  event handler calls via closure scope)

Compiler:
- Fix emit-inc/emit-dec: use expr (variable) not tgt-override (element)
- Simplify to plain (set! x (+ x amount)) since vars are pre-declared

Mock DOM:
- Add mock console object to host-global
- Add console handler (no-op) to host-call dispatch
- Override console-log/debug/error as no-op primitives to avoid
  str hitting circular refs in mock DOM elements

Fixes 4 log timeouts, 2+ increment/decrement failures.

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

2026-04-18 22:07:38 +00:00

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