feat(monitor): add eTerra session indicator + login form

The eTerra connect/disconnect UI and session status were missing from the
deployed monitor page. Also, since ETERRA env vars are empty in the
container, the connect flow now accepts username/password from the UI.
This unblocks county sync which requires an active eTerra session.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/(modules)/monitor/page.tsx

@@ -11,6 +11,16 @@ type MonitorData = {
   config?: { martinUrl?: string; pmtilesUrl?: string; n8nWebhook?: string };
 };
 
+type EterraSessionStatus = {
+  connected: boolean;
+  username?: string;
+  connectedAt?: string;
+  activeJobCount: number;
+  eterraAvailable?: boolean;
+  eterraMaintenance?: boolean;
+  eterraHealthMessage?: string;
+};
+
 export default function MonitorPage() {
   const [data, setData] = useState<MonitorData | null>(null);
   const [loading, setLoading] = useState(true);
@@ -18,6 +28,11 @@ export default function MonitorPage() {
   const [logs, setLogs] = useState<{ time: string; type: "info" | "ok" | "error" | "wait"; msg: string }[]>([]);
   const [counties, setCounties] = useState<string[]>([]);
   const [selectedCounty, setSelectedCounty] = useState("");
+  const [eterraSession, setEterraSession] = useState<EterraSessionStatus>({ connected: false, activeJobCount: 0 });
+  const [eterraConnecting, setEterraConnecting] = useState(false);
+  const [showLoginForm, setShowLoginForm] = useState(false);
+  const [eterraUser, setEterraUser] = useState("");
+  const [eterraPwd, setEterraPwd] = useState("");
   const rebuildPrevRef = useRef<string | null>(null);
   const pollRef = useRef<ReturnType<typeof setInterval> | null>(null);
 
@@ -50,6 +65,61 @@ export default function MonitorPage() {
       .catch(() => {});
   }, []);
 
+  // eTerra session status — poll every 30s
+  const fetchEterraSession = useCallback(async () => {
+    try {
+      const res = await fetch("/api/eterra/session");
+      if (res.ok) setEterraSession(await res.json() as EterraSessionStatus);
+    } catch { /* noop */ }
+  }, []);
+
+  useEffect(() => {
+    void fetchEterraSession();
+    const interval = setInterval(() => void fetchEterraSession(), 30_000);
+    return () => clearInterval(interval);
+  }, [fetchEterraSession]);
+
+  const handleEterraConnect = async () => {
+    setEterraConnecting(true);
+    try {
+      const payload: Record<string, string> = { action: "connect" };
+      if (eterraUser.trim()) payload.username = eterraUser.trim();
+      if (eterraPwd.trim()) payload.password = eterraPwd.trim();
+      const res = await fetch("/api/eterra/session", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(payload),
+      });
+      const d = await res.json() as { success?: boolean; error?: string };
+      if (d.success) {
+        await fetchEterraSession();
+        addLog("ok", "eTerra conectat");
+        setShowLoginForm(false);
+        setEterraPwd("");
+      } else {
+        addLog("error", `eTerra: ${d.error ?? "Eroare conectare"}`);
+      }
+    } catch {
+      addLog("error", "eTerra: eroare retea");
+    }
+    setEterraConnecting(false);
+  };
+
+  const handleEterraDisconnect = async () => {
+    const res = await fetch("/api/eterra/session", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ action: "disconnect" }),
+    });
+    const d = await res.json() as { success?: boolean; error?: string };
+    if (d.success) {
+      setEterraSession({ connected: false, activeJobCount: 0 });
+      addLog("info", "eTerra deconectat");
+    } else {
+      addLog("error", `Deconectare: ${d.error ?? "Eroare"}`);
+    }
+  };
+
   // Cleanup poll on unmount
   useEffect(() => {
     return () => { if (pollRef.current) clearInterval(pollRef.current); };
@@ -232,6 +302,73 @@ export default function MonitorPage() {
 
       {/* Actions + Log */}
       <Card title="Actiuni">
+        {/* eTerra session indicator */}
+        <div className="mb-4 pb-3 border-b border-border/50 space-y-2">
+          <div className="flex items-center gap-3">
+            <div className="flex items-center gap-2">
+              <span className={`w-2 h-2 rounded-full ${eterraSession.connected ? "bg-green-400" : "bg-red-400"}`} />
+              <span className="text-sm">
+                {eterraSession.connected
+                  ? `eTerra: ${eterraSession.username}`
+                  : "eTerra: deconectat"}
+              </span>
+              {eterraSession.connected && eterraSession.activeJobCount > 0 && (
+                <span className="text-xs text-muted-foreground">({eterraSession.activeJobCount} job activ)</span>
+              )}
+            </div>
+            {eterraSession.connected ? (
+              <button
+                onClick={handleEterraDisconnect}
+                className="text-xs px-2 py-1 rounded border border-border hover:bg-destructive/10 hover:text-destructive transition-colors"
+              >
+                Deconecteaza
+              </button>
+            ) : (
+              <button
+                onClick={() => setShowLoginForm((v) => !v)}
+                className="text-xs px-2 py-1 rounded border border-border hover:border-primary/50 hover:bg-primary/10 transition-colors"
+              >
+                Conecteaza
+              </button>
+            )}
+            {eterraSession.eterraMaintenance && (
+              <span className="text-xs text-yellow-400">Mentenanta</span>
+            )}
+          </div>
+          {showLoginForm && !eterraSession.connected && (
+            <div className="flex items-end gap-2">
+              <div className="flex flex-col gap-1">
+                <label className="text-xs text-muted-foreground">Utilizator eTerra</label>
+                <input
+                  type="text"
+                  value={eterraUser}
+                  onChange={(e) => setEterraUser(e.target.value)}
+                  className="h-8 w-40 rounded-md border border-border bg-background px-2 text-sm"
+                  placeholder="user@ancpi"
+                />
+              </div>
+              <div className="flex flex-col gap-1">
+                <label className="text-xs text-muted-foreground">Parola</label>
+                <input
+                  type="password"
+                  value={eterraPwd}
+                  onChange={(e) => setEterraPwd(e.target.value)}
+                  onKeyDown={(e) => { if (e.key === "Enter") handleEterraConnect(); }}
+                  className="h-8 w-40 rounded-md border border-border bg-background px-2 text-sm"
+                  placeholder="parola"
+                />
+              </div>
+              <button
+                onClick={handleEterraConnect}
+                disabled={eterraConnecting || !eterraUser.trim() || !eterraPwd.trim()}
+                className="h-8 px-3 rounded-md bg-primary text-primary-foreground text-xs hover:bg-primary/90 disabled:opacity-50"
+              >
+                {eterraConnecting ? "..." : "Login"}
+              </button>
+            </div>
+          )}
+        </div>
+
         <div className="flex flex-wrap gap-3 mb-4">
           <ActionButton
             label="Rebuild PMTiles"