docs(claude-md): flip ReScript→AffineScript per 2026-05-25 estate lan… (#32)

…guage policy

Per the 2026-05-25 estate language policy (TypeScript/ReScript →
AffineScript, tracked at hyperpolymath/standards#252), the
.claude/CLAUDE.md language-policy section here names ReScript as the
primary application language and as the TypeScript replacement. Flip
both to AffineScript.

Substitutions applied:
- ALLOWED row: ReScript → AffineScript (with target-platform note)
- JavaScript-fallback note: ReScript → AffineScript
- BANNED replacement row: TypeScript→ReScript → TypeScript→AffineScript
- Tauri web-UI: ReScript → AffineScript
- Enforcement rule: "Convert existing TS to ReScript" → AffineScript
- Enforcement rule: "ReScript for apps" → AffineScript for apps

Docs-only change. Refs hyperpolymath/standards#287 (CLAUDE.md docs slice
umbrella) and hyperpolymath/standards#252 (parent ReScript→AffineScript
migration tracker).

Signed-off-by: Jonathan D.A. Jewell <6759885+hyperpolymath@users.noreply.github.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath