feat(oracle): support per-article id_pol in PACK_IMPORT_COMENZI + deploy docs

- PACK_IMPORT_COMENZI: reads optional "id_pol" per article from JSON, uses it
  via NVL(v_id_pol_articol, p_id_pol) — enables separate price policy for
  transport/discount articles vs regular order articles
- README.md: add Windows deploy section (deploy.ps1, update.ps1, .env example)
- CLAUDE.md: add reference to Windows deploy docs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -134,3 +134,7 @@ ORACLE_PASSWORD=********
 ORACLE_DSN=ROA_ROMFAST
 TNS_ADMIN=/app
 ```
+
+## Deploy & Depanare Windows
+
+Vezi [README.md](README.md#deploy-windows) pentru instructiuni complete de deploy si depanare pe Windows Server.