feat: seedpgp v1.1.0 - BIP39 mnemonic PGP encryption tool

- Implement cv25519 PGP encryption/decryption
- Add Base45 encoding with CRC16 integrity checks
- Create SEEDPGP1 frame format for QR codes
- Support BIP39 passphrase flag indicator
- Add comprehensive test suite with Trezor BIP39 vectors
- 15 passing tests covering all core functionality

src/components/PgpKeyInput.tsx

@@ -0,0 +1,84 @@
+import React, { useState } from 'react';
+import { Upload } from 'lucide-react';
+import type { LucideIcon } from "lucide-react";
+interface PgpKeyInputProps {
+    value: string;
+    onChange: (value: string) => void;
+    placeholder: string;
+    label: string;
+    icon?: LucideIcon;
+
+
+
+}
+
+export const PgpKeyInput: React.FC<PgpKeyInputProps> = ({
+    value,
+    onChange,
+    placeholder,
+    label,
+    icon: Icon
+}) => {
+    const [isDragging, setIsDragging] = useState(false);
+
+    const handleDragOver = (e: React.DragEvent) => {
+        e.preventDefault();
+        setIsDragging(true);
+    };
+
+    const handleDragLeave = (e: React.DragEvent) => {
+        e.preventDefault();
+        setIsDragging(false);
+    };
+
+    const handleDrop = (e: React.DragEvent) => {
+        e.preventDefault();
+        setIsDragging(false);
+
+        const file = e.dataTransfer.files[0];
+        if (file) {
+            const reader = new FileReader();
+            reader.onload = (event) => {
+                if (event.target?.result) {
+                    onChange(event.target.result as string);
+                }
+            };
+            reader.readAsText(file);
+        }
+    };
+
+    return (
+        <div className="space-y-2">
+            <label className="text-sm font-semibold text-slate-700 flex items-center justify-between">
+                <span className="flex items-center gap-2">
+                    {Icon && <Icon size={14} />} {label}
+                </span>
+                <span className="text-[10px] text-slate-400 font-normal bg-slate-100 px-2 py-0.5 rounded-full border border-slate-200">
+                    Drag & Drop .asc file
+                </span>
+            </label>
+            <div
+                className={`relative transition-all duration-200 ${isDragging ? 'scale-[1.01]' : ''}`}
+                onDragOver={handleDragOver}
+                onDragLeave={handleDragLeave}
+                onDrop={handleDrop}
+            >
+                <textarea
+                    className={`w-full h-40 p-3 bg-slate-50 border rounded-xl text-xs font-mono transition-colors resize-none focus:outline-none focus:ring-2 focus:ring-blue-500 ${isDragging ? 'border-blue-500 bg-blue-50' : 'border-slate-200'
+                        }`}
+                    placeholder={placeholder}
+                    value={value}
+                    onChange={(e) => onChange(e.target.value)}
+                />
+                {isDragging && (
+                    <div className="absolute inset-0 flex items-center justify-center bg-blue-50/90 rounded-xl border-2 border-dashed border-blue-500 pointer-events-none z-10">
+                        <div className="text-blue-600 font-bold flex flex-col items-center animate-bounce">
+                            <Upload size={24} />
+                            <span className="text-sm mt-2">Drop Key File Here</span>
+                        </div>
+                    </div>
+                )}
+            </div>
+        </div>
+    );
+};

src/components/QrDisplay.tsx

@@ -0,0 +1,31 @@
+import { useEffect, useState } from 'react';
+import QRCode from 'qrcode';
+
+interface QrDisplayProps {
+    value: string;
+}
+
+export const QrDisplay: React.FC<QrDisplayProps> = ({ value }) => {
+    const [dataUrl, setDataUrl] = useState<string>('');
+
+    useEffect(() => {
+        if (value) {
+            QRCode.toDataURL(value, {
+                errorCorrectionLevel: 'Q',
+                type: 'image/png',
+                width: 512,
+                margin: 2,
+            })
+                .then(setDataUrl)
+                .catch(console.error);
+        }
+    }, [value]);
+
+    if (!dataUrl) return null;
+
+    return (
+        <div className="flex items-center justify-center p-4 bg-white rounded-xl border-2 border-slate-200">
+            <img src={dataUrl} alt="SeedPGP QR Code" className="w-64 h-64" />
+        </div>
+    );
+};