build(release): what's new drafted from the commits' Whats-New trailers, other apps' commits left out

The drafts came from the commits' subjects, which are written for
developers: each of the releases of 4 Nov 2026 (Todo 0.2.0, Train 0.3.0,
Learn 0.24.0) listed every commit since the last, Meditate's among them
where it touched a shared package, more than twice F-Droid's 500
characters, the German all still to translate, and each had to be written
again whole.

A commit people would notice now says so in its message's trailers,
`Whats-New: <sentence>` once a change and `Whats-New-De: <Satz>` in the
same order, and the draft is those lines alone, the features' first, a
missing translation marked TRANSLATE:. Only where no commit of the
release carries one does it fall back to the subjects. A commit whose
scope names apps (feat(todo,meditate): ...) counts for those alone, any
other for every app it touches. Over a running next.<language>.txt per
app, which parallel branches conflict on at every merge, and over an
assistant drafting at release time (a key, the commits sent to a
provider, a different text each run). ADR 0030, D61.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

test/release/whats_new_test.dart

@@ -11,16 +11,21 @@ import 'fixtures.dart';
 void main() {
   test('the drafts list the features, then the fixes, without types, scopes '
       'and closing references, as sentences; German marked to translate', () {
-    final drafts = draftWhatsNew(const [
-      Commit(hash: 'a', subject: 'fix(sync): no lost rating'),
-      Commit(hash: 'b', subject: 'docs: why'),
-      Commit(
-        hash: 'c',
-        subject: 'feat(train): tabs folding into the title (ADR 0030, D60)',
-      ),
-      Commit(hash: 'd', subject: 'perf!: faster library.'),
-      Commit(hash: 'e', subject: 'chore(release): notes-v0.18.0'),
-    ], first: false);
+    final drafts = draftWhatsNew(
+      const [
+        Commit(hash: 'a', subject: 'fix(sync): no lost rating'),
+        Commit(hash: 'b', subject: 'docs: why'),
+        Commit(
+          hash: 'c',
+          subject: 'feat(train): tabs folding into the title (ADR 0030, D60)',
+        ),
+        Commit(hash: 'd', subject: 'perf!: faster library.'),
+        Commit(hash: 'e', subject: 'chore(release): notes-v0.18.0'),
+      ],
+      first: false,
+      app: 'notes',
+      apps: _apps,
+    );
 
     expect(drafts['en'], '''
 - Tabs folding into the title.
@@ -36,11 +41,87 @@ void main() {
 
   test('the first release says so', () {
     expect(
-      draftWhatsNew(const [], first: true)['en'],
+      draftWhatsNew(const [], first: true, app: 'notes', apps: _apps)['en'],
       '- The first release.\n',
     );
   });
 
+  test("commits scoped to other apps don't count; a shared package's do", () {
+    final drafts = draftWhatsNew(
+      const [
+        Commit(hash: 'a', subject: 'feat(diary): the first diary'),
+        Commit(hash: 'b', subject: 'feat(notes,diary): a lock on both'),
+        Commit(hash: 'c', subject: 'feat(app): a profile everywhere'),
+        Commit(hash: 'd', subject: 'fix(deploy): the image builds'),
+      ],
+      first: false,
+      app: 'notes',
+      apps: _apps,
+    );
+
+    expect(drafts['en'], '''
+- A lock on both.
+- A profile everywhere.
+- The image builds.
+''');
+  });
+
+  group('the trailers', () {
+    const commits = [
+      Commit(
+        hash: 'a',
+        subject: 'fix(notes): the sync no longer loses a rating',
+        body:
+            'Why it did.\n\n'
+            'Whats-New: Ratings are kept when syncing.\n'
+            'Whats-New-De: Bewertungen bleiben beim Synchronisieren.\n'
+            'Signed-off-by: A <a@example.org>\n',
+      ),
+      Commit(hash: 'b', subject: 'feat(notes): a refactor nobody sees'),
+      Commit(
+        hash: 'c',
+        subject: 'feat(app): tabs folding into the title (ADR 0030, D60)',
+        body:
+            'Whats-New: Tabs fold into the title.\n'
+            'Whats-New: Search: in every list.\n'
+            'Whats-New-De: Tabs falten sich in den Titel.\n',
+      ),
+      Commit(
+        hash: 'd',
+        subject: 'feat(diary): a diary',
+        body: 'Whats-New: A diary.\nWhats-New-De: Ein Tagebuch.\n',
+      ),
+    ];
+
+    test("are what's new where a commit has them: the features' first, "
+        'commits without them left out, those of other apps too', () {
+      final drafts = draftWhatsNew(
+        commits,
+        first: false,
+        app: 'notes',
+        apps: _apps,
+      );
+
+      expect(drafts['en'], '''
+- Tabs fold into the title.
+- Search: in every list.
+- Ratings are kept when syncing.
+''');
+      expect(drafts['de'], '''
+- Tabs falten sich in den Titel.
+- TRANSLATE: Search: in every list.
+- Bewertungen bleiben beim Synchronisieren.
+''');
+    });
+
+    test('are left alone in the first release', () {
+      expect(
+        draftWhatsNew(commits, first: true, app: 'notes', apps: _apps)['de'],
+        '- TRANSLATE: The first release.\n',
+      );
+    });
+  });
+
   test("a text's changes are its lines starting with '- '", () {
     expect(whatsNewChanges('- One\n\n  - Two \n'), ['One', 'Two']);
     expect(whatsNewList('- One\n\n  - Two \n'), '- One\n- Two');
@@ -110,3 +191,5 @@ void main() {
     });
   }
 }
+
+const _apps = {'notes', 'diary'};