fix(login,download): login direct pe goapp, descarcare doar a documentului nou

- BT a mutat login-ul (09.2026): go.bancatransilvania.ro face 302 spre
  marketing; formularul e pe goapp.bancatransilvania.ro, acelasi tab, fara popup.
- Daca formularul nu apare: eroare explicita cu URL/titlu + screenshot/HTML.
- scripts/check_login_page.py: verifica pagina de login fara credentiale.
- Download: asteapta documentul nou din "Recente"; export gol -> [SKIP], nu timeout.
- Screenshot la eroare facut inainte de oprirea Playwright.
- opencode.json: agentii opencode nu pot citi .env.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DxPhZABSUf1RJXRWtwecqC

opencode.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://opencode.ai/config.json",
+  "permission": {
+    "read": { "*.env": "deny", "*": "allow" },
+    "bash": { "*.env*": "deny", "*": "allow" }
+  }
+}