Add app source and tests

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

lib/Peach/designs/text/Text.dart

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+import 'package:flutter/material.dart';
+
+import '../../about/internal/application/TextType.dart';
+import '../../utils/Colors.dart';
+
+/// Resolves a [TextType] role to the font family that carries it. Display copy
+/// (Bold) uses Sora; body and secondary copy use Urbanist and PlusJakartaSans.
+String getTextType(TextType type) {
+  switch (type) {
+    case TextType.Bold:
+      return 'Sora';
+    case TextType.Regular:
+      return 'Urbanist';
+    case TextType.Light:
+      return 'PlusJakartaSans';
+  }
+}
+
+/// The only way display copy is drawn. Never build a raw `Text`/`TextStyle`
+/// for user-facing strings — go through here so family, weight and colour stay
+/// consistent across every screen.
+///
+/// [color] defaults to the theme's primary text colour when a [BuildContext]
+/// is supplied, so a call site rarely needs to name a colour at all.
+Widget text(
+  String text,
+  double textSize,
+  TextType type, {
+  BuildContext? context,
+  Color? color,
+  TextAlign? align,
+  int? maxLines,
+  TextOverflow? overflow,
+  double? letterSpacing,
+  double? height,
+  double? wordSpacing,
+  TextDecoration? decoration,
+  FontWeight? weight,
+}) {
+  return Text(
+    text,
+    textAlign: align ?? TextAlign.left,
+    maxLines: maxLines,
+    overflow: overflow,
+    style: TextStyle(
+      decoration: decoration ?? TextDecoration.none,
+      color: color ?? (context != null ? context.jp.text : colorPrimaryDark),
+      fontSize: textSize,
+      fontFamily: getTextType(type),
+      letterSpacing: letterSpacing,
+      height: height,
+      wordSpacing: wordSpacing,
+      fontWeight: weight ?? _weightFor(type),
+    ),
+  );
+}
+
+FontWeight _weightFor(TextType type) {
+  switch (type) {
+    case TextType.Bold:
+      return FontWeight.w700;
+    case TextType.Regular:
+      return FontWeight.w500;
+    case TextType.Light:
+      return FontWeight.w400;
+  }
+}