Add app source and tests

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

lib/Peach/designs/TransferCard.dart

@@ -0,0 +1,165 @@
+import 'package:flutter/material.dart';
+import '../about/internal/application/TextType.dart';
+
+import '../comms/Comms.dart' show TransferProgress;
+import '../utils/Colors.dart';
+import 'text/Text.dart';
+
+/// A descriptive, non-flat transfer panel: big percentage, a gradient progress
+/// bar, and live stats (transferred, speed, ETA).
+class TransferCard extends StatelessWidget {
+  final TransferProgress progress;
+  const TransferCard({super.key, required this.progress});
+
+  @override
+  Widget build(BuildContext context) {
+    final jp = context.jp;
+    final pct = progress.fraction == null
+        ? null
+        : (progress.fraction! * 100).clamp(0, 100);
+    final verb = progress.uploading ? 'Uploading' : 'Downloading';
+    return Container(
+      padding: const EdgeInsets.all(16),
+      decoration: BoxDecoration(
+        color: jp.surface,
+        borderRadius: BorderRadius.circular(20),
+        border: Border.all(color: PeachTheme.seed.withValues(alpha: 0.5)),
+        boxShadow: [
+          ...PeachTheme.softShadow(Theme.of(context).brightness),
+          ...PeachTheme.glow(PeachTheme.seed, opacity: 0.18, blur: 30),
+        ],
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            crossAxisAlignment: CrossAxisAlignment.end,
+            children: [
+              Icon(
+                progress.uploading ? Icons.cloud_upload : Icons.cloud_download,
+                color: PeachTheme.seed,
+                size: 22,
+              ),
+              const SizedBox(width: 8),
+              text(
+                verb,
+                15,
+                TextType.Regular,
+                color: jp.text,
+                weight: FontWeight.w700,
+              ),
+              const Spacer(),
+              text(
+                pct == null ? '—' : '${pct.toStringAsFixed(0)}%',
+                26,
+                TextType.Regular,
+                color: PeachTheme.seed,
+                height: 1,
+                weight: FontWeight.w800,
+              ),
+            ],
+          ),
+          const SizedBox(height: 12),
+          ClipRRect(
+            borderRadius: BorderRadius.circular(6),
+            child: Stack(
+              children: [
+                Container(height: 10, color: jp.surface2),
+                FractionallySizedBox(
+                  widthFactor: (progress.fraction ?? 0).clamp(0.0, 1.0),
+                  child: Container(
+                    height: 10,
+                    decoration: const BoxDecoration(
+                      gradient: LinearGradient(
+                        colors: [PeachTheme.seed, PeachTheme.accent],
+                      ),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+          const SizedBox(height: 14),
+          Row(
+            children: [
+              _stat(
+                jp,
+                Icons.data_usage,
+                'Transferred',
+                '${_bytes(progress.sent)} / ${_bytes(progress.total)}',
+              ),
+              _sep(jp),
+              _stat(
+                jp,
+                Icons.speed,
+                'Speed',
+                '${_bytes(progress.bytesPerSec.round())}/s',
+              ),
+              _sep(jp),
+              _stat(jp, Icons.timer_outlined, 'ETA', _eta(progress.eta)),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _sep(JpColors jp) => Container(width: 1, height: 30, color: jp.border);
+
+  Widget _stat(JpColors jp, IconData icon, String label, String value) {
+    return Expanded(
+      child: Column(
+        children: [
+          Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Icon(icon, size: 12, color: jp.textFaint),
+              const SizedBox(width: 4),
+              text(
+                label.toUpperCase(),
+                9,
+                TextType.Regular,
+                color: jp.textFaint,
+                letterSpacing: 0.8,
+                weight: FontWeight.w700,
+              ),
+            ],
+          ),
+          const SizedBox(height: 3),
+          Text(
+            value,
+            maxLines: 1,
+            overflow: TextOverflow.ellipsis,
+            style: TextStyle(
+              fontSize: 12.5,
+              fontFamily: 'monospace',
+              fontWeight: FontWeight.w600,
+              color: jp.text,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  static String _bytes(int b) {
+    if (b < 1024) return '$b B';
+    if (b < 1024 * 1024) return '${(b / 1024).toStringAsFixed(0)} KB';
+    if (b < 1024 * 1024 * 1024) {
+      return '${(b / (1024 * 1024)).toStringAsFixed(1)} MB';
+    }
+    return '${(b / (1024 * 1024 * 1024)).toStringAsFixed(2)} GB';
+  }
+
+  static String _eta(Duration? d) {
+    if (d == null) return '—';
+    final s = d.inSeconds;
+    if (s <= 0) return '0s';
+    if (s < 60) return '${s}s';
+    final m = s ~/ 60;
+    final rem = s % 60;
+    if (m < 60) return '${m}m ${rem}s';
+    final h = m ~/ 60;
+    return '${h}h ${m % 60}m';
+  }
+}