feat: the workspace at /workspace; Настройки show the assistant's model as set, key included, and PostgreSQL's fields only when chosen, its two buttons on one line; pages come in softly

internal/server/web/static/app.css

@@ -904,3 +904,17 @@ body.ai-dragging .ai-fab, body.ai-dragging .ai-box { transition:none; }
 .ai-form-in textarea { min-height:40px; }
 .ai-send { min-height:40px; max-height:40px; min-width:40px; max-width:40px; line-height:1; border-radius:10px; }
 .ai-form-in textarea { border-radius:10px; }
+/* Настройки: the key with its eye; PostgreSQL's fields only when chosen. */
+.ai-form .keybox { display:flex; gap:6px; align-items:center; }
+.ai-form .keybox input { flex:1; }
+.ai-form .keybox .btn.sq { width:38px; height:38px; flex:none; }
+.db-form:not(.pg) .pg-fields { display:none; }
+.db-form .pg-fields { display:grid; gap:10px; }
+.db-form .frow2 { display:flex; gap:10px; }
+.db-form .frow2 label:first-child { flex:1; }
+.db-form .frow2 .port { width:120px; }
+.db-actions { margin-top:12px; }
+.db-actions form { margin:0; }
+/* Moving between Машины, WorkSpace and Настройки: the page comes in softly. */
+main#app > .view:not([hidden]) { animation:view-in .22s ease both; }
+@keyframes view-in { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:none; } }