feat: assistant reads, lists and writes files and runs commands on any of the user's machines; agent mode does the steps itself, asking before each command and write

internal/server/web/static/app.css

@@ -861,3 +861,9 @@ dialog.uidlg { max-width:420px; width:92vw; }
 .sshdlg .chk input { width:auto; }
 .sshdlg .saved-row[hidden] { display:none; }
 .sshdlg .saved-row .frow { align-items:center; }
+.ai-agent { display:inline-flex; align-items:center; gap:5px; font-size:12.5px; color:var(--muted); cursor:pointer; }
+.ai-agent input { width:auto; margin:0; }
+.ai-msg.result { align-self:stretch; max-width:none; padding:4px 10px; font-size:12.5px; color:var(--muted); background:transparent; border:1px dashed var(--border); }
+.ai-msg.result summary { cursor:pointer; }
+.ai-msg.result pre { margin:6px 0 2px; max-height:220px; overflow:auto; white-space:pre-wrap; font-size:12px; }
+.ai-cap { font-size:12px; margin-bottom:4px; }