1.4.4

v1.4.4 (Phase 6): rebalance weights, tighten fuzzy, skip fenced code

- Skip suggestions inside ```fenced code blocks``` (FENCE_PATTERN, checked
  before inline backticks; handles unclosed/EOF).
- Fuzzy tightened: min token length 5; 2 edits only for tokens >= 8 chars,
  else 1; never fuzzy-match into a common function word. Kills the absurd
  "renorm"->Record (d=2 on 6 chars) and "note"->NOT (fuzz into stop-word),
  while databse->Database and kuberentes->Kubernetes still match.
- Weights rebalanced; semantics demoted to a low refiner:
  lex .40, sig .25, case .15, graph .10, sem .05, accept .05.

Verified: 4 absurd cases rejected, 8 good matches survive, fenced-block skip,
at default sensitivity 55 (no need to crank sensitivity down).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>