ui: remove credentials badge from WEB sessions, remove Back button from RDP

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

app/main.py

@@ -1637,28 +1637,6 @@ def session_view_page(session_id: str, request: Request, user: User = Depends(re
             iframe_src = None
     if iframe_src:
         creds_html = ""
-        if service.type != ServiceType.RDP and (service.svc_login or service.svc_password):
-            rows = ""
-            if service.svc_login:
-                login_esc = service.svc_login.replace('"', '&quot;').replace('<', '&lt;')
-                rows += f'''<div class="cr-row"><span class="cr-label">Логин</span><span class="cr-val">{login_esc}</span></div>'''
-            if service.svc_password:
-                pass_esc = service.svc_password.replace('"', '&quot;').replace('<', '&lt;')
-                rows += f'''<div class="cr-row"><span class="cr-label">Пароль</span><span class="cr-val cr-masked">{pass_esc}</span></div>'''
-            if service.svc_cred_hint:
-                hint_esc = service.svc_cred_hint.replace('<', '&lt;')
-                rows += f'''<p class="cr-hint">{hint_esc}</p>'''
-            creds_html = f'''
-  <div class="creds-panel" id="creds-panel">
-    <button class="creds-close" id="creds-close" title="Закрыть">✕</button>
-    {rows}
-  </div>
-  <script>
-    document.getElementById("creds-close").onclick = function() {{
-      document.getElementById("creds-panel").style.display = "none";
-    }};
-
-  </script>'''
 
         return HTMLResponse(
             content=f"""