fix: restore toast auto-close and implement authentication flow

frontend/src/App.tsx

@@ -103,14 +103,15 @@ function App() {
   // Screenshot handler with auth check
   const handleScreenshot = useCallback(() => {
     if (!user) {
-      toast.warning('请先登录以拍摄宇宙快照');
-      setShowAuthModal(true);
+      toast.warning('请先登录以拍摄宇宙快照', 3000, () => {
+        setShowAuthModal(true);
+      });
       return;
     }
     // Use username or full_name or fallback
     const nickname = user.full_name || user.username || 'Explorer';
     takeScreenshot(nickname);
-  }, [user, takeScreenshot]);
+  }, [user, takeScreenshot, toast]);
 
   // Auth handlers
   const handleLoginSuccess = (userData: any) => {
@@ -164,7 +165,15 @@ function App() {
         isSoundOn={isSoundOn}
         onToggleSound={() => setIsSoundOn(!isSoundOn)}
         showMessageBoard={showMessageBoard}
-        onToggleMessageBoard={() => setShowMessageBoard(!showMessageBoard)}
+        onToggleMessageBoard={() => {
+          if (!user) {
+            toast.warning('请先登录以访问留言板', 3000, () => {
+              setShowAuthModal(true);
+            });
+          } else {
+            setShowMessageBoard(!showMessageBoard);
+          }
+        }}
         onScreenshot={handleScreenshot}
       />
 

frontend/src/components/FocusInfo.tsx

@@ -41,35 +41,7 @@ export function FocusInfo({ body, onClose }: FocusInfoProps) {
       }
   };
 
-  const terminalStyles = `
-    .terminal-modal .ant-modal-content {
-        background-color: #0d1117 !important;
-        border: 1px solid #238636 !important;
-        box-shadow: 0 0 30px rgba(35, 134, 54, 0.15) !important;
-        color: #2ea043 !important;
-        padding: 0 !important;
-        overflow: hidden !important;
-    }
-    .terminal-modal .ant-modal-body {
-        background-color: #0d1117 !important;
-    }
-    .terminal-modal .ant-modal-header {
-        background-color: #161b22 !important;
-        border-bottom: 1px solid #238636 !important;
-        margin-bottom: 0 !important;
-    }
-    .terminal-modal .ant-modal-title {
-        color: #2ea043 !important;
-    }
-    .terminal-modal .ant-modal-close {
-        color: #2ea043 !important;
-    }
-    .terminal-modal .ant-modal-close:hover {
-        background-color: rgba(35, 134, 54, 0.2) !important;
-    }
-    .terminal-modal .ant-modal-body .animate-in {
-        color: #2ea043 !important; /* Ensure content text is green */
-    }
+  const styles = `
     @keyframes spin-slow {
         from { transform: rotate(0deg); }
         to { transform: rotate(360deg); }
@@ -82,7 +54,7 @@ export function FocusInfo({ body, onClose }: FocusInfoProps) {
   return (
     // Remove fixed positioning, now handled by parent container (Html component in 3D)
     <div className="flex flex-col items-center -translate-y-24 pointer-events-none">
-      <style>{terminalStyles}</style>
+      <style>{styles}</style>
       {/* Main Info Card */}
       <div className="bg-black/80 backdrop-blur-xl border border-white/10 rounded-2xl p-5 min-w-[340px] max-w-md shadow-2xl pointer-events-auto relative group mb-2">
         
@@ -165,54 +137,22 @@ export function FocusInfo({ body, onClose }: FocusInfoProps) {
       {/* Connecting Line/Triangle pointing down to the body */}
       <div className="w-0 h-0 border-l-[8px] border-l-transparent border-r-[8px] border-r-transparent border-t-[8px] border-t-black/80 backdrop-blur-xl mt-[-1px]"></div>
 
-      {/* Terminal Modal */}
-      <Modal
+      <TerminalModal
         open={showTerminal}
-        onCancel={() => setShowTerminal(false)}
-        footer={null}
-        width={800}
-        centered
-        className="terminal-modal"
-        styles={{
-            header: {
-                backgroundColor: '#161b22',
-                borderBottom: '1px solid #238636',
-                padding: '12px 20px',
-                marginBottom: 0,
-                display: 'flex',
-                alignItems: 'center'
-            },
-            mask: {
-                backgroundColor: 'rgba(0, 0, 0, 0.85)',
-                backdropFilter: 'blur(4px)'
-            },
-            body: {
-                padding: '20px',
-                backgroundColor: '#0d1117'
-            }
-        }}
+        onClose={() => setShowTerminal(false)}
         title={
             <div className="flex items-center gap-2 text-[#2ea043] font-mono tracking-wider text-xs">
                 <div className="w-2 h-2 rounded-full bg-[#2ea043] animate-pulse"></div>
                 JPL/HORIZONS SYSTEM INTERFACE // {body.name.toUpperCase()}
             </div>
         }
-        closeIcon={<X size={18} style={{ color: '#2ea043' }} />}
+        loading={loading}
+        loadingText="ESTABLISHING SECURE UPLINK..."
       >
-        <div className="h-[60vh] overflow-auto font-mono text-xs whitespace-pre-wrap scrollbar-none">
-            {loading ? (
-                <div className="flex items-center justify-center h-full flex-col gap-4 text-[#2ea043]">
-                    <Spin indicator={<Radar className="animate-spin text-[#2ea043]" size={48} />} />
-                    <div className="animate-pulse tracking-widest">ESTABLISHING SECURE UPLINK...</div>
-                    <div className="text-[10px] opacity-50">Connecting to ssd.jpl.nasa.gov...</div>
-                </div>
-            ) : (
-                <div className="animate-in fade-in duration-500">
-                    {terminalData}
-                </div>
-            )}
+        <div className="whitespace-pre-wrap">
+            {terminalData}
         </div>
-      </Modal>
+      </TerminalModal>
     </div>
   );
 }

frontend/src/contexts/ToastContext.tsx

@@ -1,4 +1,5 @@
 import { createContext, useContext, useState, useCallback, useRef } from 'react';
+import type { ReactNode } from 'react';
 import { X, CheckCircle, AlertCircle, AlertTriangle, Info } from 'lucide-react';
 
 // Types
@@ -7,16 +8,17 @@ type ToastType = 'success' | 'error' | 'warning' | 'info';
 interface Toast {
   id: string;
   type: ToastType;
-  message: string;
+  message: ReactNode;
   duration?: number;
+  onClose?: () => void;
 }
 
 interface ToastContextValue {
-  showToast: (message: string, type?: ToastType, duration?: number) => string;
-  success: (message: string, duration?: number) => string;
-  error: (message: string, duration?: number) => string;
-  warning: (message: string, duration?: number) => string;
-  info: (message: string, duration?: number) => string;
+  showToast: (message: ReactNode, type?: ToastType, duration?: number, onClose?: () => void) => string;
+  success: (message: ReactNode, duration?: number, onClose?: () => void) => string;
+  error: (message: ReactNode, duration?: number, onClose?: () => void) => string;
+  warning: (message: ReactNode, duration?: number, onClose?: () => void) => string;
+  info: (message: ReactNode, duration?: number, onClose?: () => void) => string;
   removeToast: (id: string) => void;
 }
 
@@ -54,16 +56,22 @@ export function ToastProvider({ children }: { children: React.ReactNode }) {
   const timersRef = useRef<Map<string, number>>(new Map());
 
   const removeToast = useCallback((id: string) => {
-    setToasts((prev) => prev.filter((t) => t.id !== id));
+    setToasts((prev) => {
+      const toast = prev.find(t => t.id === id);
+      if (toast && toast.onClose) {
+        toast.onClose();
+      }
+      return prev.filter((t) => t.id !== id);
+    });
     if (timersRef.current.has(id)) {
       clearTimeout(timersRef.current.get(id));
       timersRef.current.delete(id);
     }
   }, []);
 
-  const showToast = useCallback((message: string, type: ToastType = 'info', duration = 3000) => {
+  const showToast = useCallback((message: ReactNode, type: ToastType = 'info', duration = 3000, onClose?: () => void) => {
     const id = Math.random().toString(36).substring(2, 9);
-    const newToast: Toast = { id, type, message, duration };
+    const newToast: Toast = { id, type, message, duration, onClose };
 
     setToasts((prev) => [...prev, newToast]);
 
@@ -78,10 +86,10 @@ export function ToastProvider({ children }: { children: React.ReactNode }) {
   }, [removeToast]);
 
   // Convenience methods
-  const success = useCallback((msg: string, d?: number) => showToast(msg, 'success', d), [showToast]);
-  const error = useCallback((msg: string, d?: number) => showToast(msg, 'error', d), [showToast]);
-  const warning = useCallback((msg: string, d?: number) => showToast(msg, 'warning', d), [showToast]);
-  const info = useCallback((msg: string, d?: number) => showToast(msg, 'info', d), [showToast]);
+  const success = useCallback((msg: ReactNode, d?: number, onClose?: () => void) => showToast(msg, 'success', d, onClose), [showToast]);
+  const error = useCallback((msg: ReactNode, d = 3000, onClose?: () => void) => showToast(msg, 'error', d, onClose), [showToast]);
+  const warning = useCallback((msg: ReactNode, d = 3000, onClose?: () => void) => showToast(msg, 'warning', d, onClose), [showToast]);
+  const info = useCallback((msg: ReactNode, d?: number, onClose?: () => void) => showToast(msg, 'info', d, onClose), [showToast]);
 
   return (
     <ToastContext.Provider value={{ showToast, success, error, warning, info, removeToast }}>
@@ -101,7 +109,7 @@ export function ToastProvider({ children }: { children: React.ReactNode }) {
             `}
           >
             <div className="mt-0.5 shrink-0">{icons[toast.type]}</div>
-            <p className="flex-1 text-sm font-medium leading-tight pt-0.5">{toast.message}</p>
+            <div className="flex-1 text-sm font-medium leading-tight pt-0.5">{toast.message}</div>
             <button
               onClick={() => removeToast(toast.id)}
               className="text-white/40 hover:text-white transition-colors shrink-0"