feat(legal): in-app Privacy & rules screen with plain-words summaries and links to the full documents

apps/app_seeds/lib/app.dart

@@ -33,6 +33,7 @@ import 'ui/favorites_screen.dart';
 import 'ui/home_screen.dart';
 import 'ui/intro_screen.dart';
 import 'ui/inventory_list_screen.dart';
+import 'ui/legal_screen.dart';
 import 'ui/plantares_screen.dart';
 import 'ui/sales_screen.dart';
 import 'ui/market_offer_detail_screen.dart';
@@ -254,6 +255,10 @@ class TaneApp extends StatelessWidget {
           path: '/about',
           builder: (context, state) => const AboutScreen(),
         ),
+        GoRoute(
+          path: '/legal',
+          builder: (context, state) => const LegalScreen(),
+        ),
         GoRoute(
           path: '/inventory',
           builder: (context, state) => BlocProvider(

apps/app_seeds/lib/ui/about_screen.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:url_launcher/url_launcher.dart';
 
@@ -68,6 +69,13 @@ class AboutScreen extends StatelessWidget {
               mode: LaunchMode.externalApplication,
             ),
           ),
+          ListTile(
+            leading: const Icon(Icons.privacy_tip_outlined, color: seedGreen),
+            title: Text(t.legal.title),
+            subtitle: Text(t.legal.subtitle),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () => context.push('/legal'),
+          ),
           ListTile(
             leading: const Icon(Icons.description_outlined, color: seedGreen),
             title: Text(t.about.openSourceLicenses),

apps/app_seeds/lib/ui/legal_screen.dart

@@ -0,0 +1,111 @@
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+import '../i18n/strings.g.dart';
+import 'theme.dart';
+
+/// Where the full legal documents are published. The masters live in the
+/// repository under `docs/legal/` and must stay in sync with these pages.
+const String legalBaseUrl = 'https://tane.comunes.org/legal';
+
+/// "Privacy & rules": in-app, human-language summaries of the privacy policy,
+/// the terms + community rules, and the seed-legality notice, each linking to
+/// the full published text.
+class LegalScreen extends StatelessWidget {
+  const LegalScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final t = context.t;
+    return Scaffold(
+      appBar: AppBar(title: Text(t.legal.title)),
+      body: ListView(
+        padding: const EdgeInsets.fromLTRB(20, 16, 20, 32),
+        children: [
+          _Section(
+            icon: Icons.lock_outline,
+            title: t.legal.privacyTitle,
+            body: t.legal.privacyBody,
+            url: '$legalBaseUrl/privacy',
+          ),
+          _Section(
+            icon: Icons.handshake_outlined,
+            title: t.legal.rulesTitle,
+            body: t.legal.rulesBody,
+            url: '$legalBaseUrl/rules',
+          ),
+          _Section(
+            icon: Icons.grass_outlined,
+            title: t.legal.seedsTitle,
+            body: t.legal.seedsBody,
+            url: '$legalBaseUrl/seeds',
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+/// One titled summary block with its "read the full text" link.
+class _Section extends StatelessWidget {
+  const _Section({
+    required this.icon,
+    required this.title,
+    required this.body,
+    required this.url,
+  });
+
+  final IconData icon;
+  final String title;
+  final String body;
+  final String url;
+
+  @override
+  Widget build(BuildContext context) {
+    final t = context.t;
+    final theme = Theme.of(context);
+    return Padding(
+      padding: const EdgeInsetsDirectional.only(bottom: 24),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              Icon(icon, color: seedGreen),
+              const SizedBox(width: 10),
+              Expanded(
+                child: Text(
+                  title,
+                  style: theme.textTheme.titleMedium?.copyWith(
+                    color: seedOnSurface,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 8),
+          Text(
+            body,
+            style: theme.textTheme.bodyMedium?.copyWith(
+              color: seedOnSurface,
+              height: 1.5,
+            ),
+          ),
+          TextButton.icon(
+            style: TextButton.styleFrom(
+              padding: EdgeInsets.zero,
+              foregroundColor: seedGreen,
+            ),
+            icon: const Icon(Icons.open_in_new, size: 16),
+            label: Text(t.legal.readFull),
+            onPressed: () => launchUrl(
+              Uri.parse(url),
+              mode: LaunchMode.externalApplication,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

apps/app_seeds/lib/ui/settings_screen.dart

@@ -67,6 +67,12 @@ class SettingsScreen extends StatelessWidget {
             trailing: const Icon(Icons.chevron_right),
             onTap: () => context.push('/about'),
           ),
+          ListTile(
+            leading: const Icon(Icons.privacy_tip_outlined, color: seedGreen),
+            title: Text(t.legal.title),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () => context.push('/legal'),
+          ),
         ],
       ),
     );