Reorganizes /docs into 8 subfolders (architecture, guides, reference, frameworks,
routing, security, compression, ops). Resolves two conflicts:
- scripts/docs/gen-provider-reference.ts: combined FASE 1's new __dirname-based
ROOT (two levels up from scripts/docs/) with FASE 3's new output path
(docs/reference/PROVIDER_REFERENCE.md).
- scripts/check-env-doc-sync.mjs: deleted by FASE 1, modified by FASE 3; FASE 1's
delete wins (file is at scripts/check/ now). The FASE 3 intent (point to
docs/reference/ENVIRONMENT.md) was applied to the strict checker at the new path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>