Fix CI: title removal order, Windows fixtures and POSIX-only tests

- Title removal ran the Steam shortcut tidy-up before steamos-delete, which
  finds the Proton prefix through that shortcut, so compatdata was left behind
  (e2e caught it). steamos-delete runs first again; art/collection tidy-up after.
- Test fixtures are byte-exact: never convert line endings (a text-looking
  fixture APK got CRLF on Windows and failed its SHA-256).
- Read index.html/artwork-settings.js as UTF-8 in tests; app-data backup and
  OBB shell tests run only on POSIX (they exercise the Frame-side scripts).
- e2e expects the icon under artwork/ now.

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

tests/e2e/test_android.py

@@ -33,7 +33,7 @@ class AndroidApps(harness.FrameTestCase):
         self.assertEqual(shortcut['name'], 'App label')
         self.assertEqual(shortcut['exe'], f'{APP_DIR}/launch.sh')
         self.assertEqual(shortcut['start_dir'], APP_DIR)
-        self.assertEqual(shortcut['icon'], f'{APP_DIR}/icon.png')
+        self.assertEqual(shortcut['icon'], f'{APP_DIR}/artwork/icon.png')
         for f in ('app.apk', 'launch.sh', 'instance.id', 'meta.json', 'icon.png', 'lepton-show-flatscreen'):
             self.assertTrue(exists(f'{APP_DIR}/{f}'), f)
         self.assertEqual(meta['game_id'], (meta['shortcut'] << 32) | 0x02000000)

tests/test_frame_android_data.py

@@ -68,7 +68,8 @@ class ObbTests(unittest.TestCase):
                     data._stream('command')
 
 
-    @unittest.skipUnless(shutil.which("sh") and shutil.which("shasum"), "shell checksum tools unavailable")
+    @unittest.skipUnless(os.name == 'posix' and shutil.which("sh") and shutil.which("shasum"),
+                         "the OBB script runs on the Frame (Linux shell)")
     def test_android_shell_publish_and_hash_failure(self):
         with tempfile.TemporaryDirectory() as tmp:
             source = Path(tmp) / ('main.7.' + PKG + '.obb')
@@ -100,6 +101,7 @@ class ObbTests(unittest.TestCase):
                 self.assertEqual(list(output.parent.glob('*.part')), [])
 
 
+@unittest.skipUnless(os.name == 'posix', 'app-data backups run on the Frame (Linux ownership and modes)')
 class BackupTests(unittest.TestCase):
     def test_roundtrip_and_retains_previous_data(self):
         with tempfile.TemporaryDirectory() as tmp:

tests/test_library_entrypoints.py

@@ -216,6 +216,19 @@ class EntryPoints(unittest.TestCase):
             titles.remove('Game')
         self.assertTrue(any('steamos-delete --delete-title Game' in c for c in cmds))
 
+    def test_native_remove_deletes_before_tidying_the_shortcut(self):
+        # steamos-delete finds the Proton prefix through the shortcut, so the shortcut must still exist.
+        order = []
+        def ssh(cmd, **kwargs):
+            if 'steamos-delete' in cmd:
+                order.append('delete')
+            return 'yes' if 'test -d' in cmd else '/home/steamos' if 'HOME' in cmd else ''
+        with patch.object(titles, 'ssh', side_effect=ssh), patch.object(titles, 'ensure_utils'), \
+             patch.object(titles, '_library_shortcut', return_value=42), \
+             patch.object(titles.frame_android, 'shortcut_tool', side_effect=lambda *a: order.append(a)):
+            titles.remove('Game')
+        self.assertEqual(order, ['delete', ('remove', '42')])
+
     def test_native_refresh_art_backfills_registered_title(self):
         meta = {'id':'Game','name':'My Game','source':'game.zip'}
         writes = []

tests/test_server.py

@@ -277,10 +277,10 @@ class ArtworkSettings(unittest.TestCase):
                 proc.wait(timeout=10)
 
     def test_panel_script_uses_the_keyed_api_helper(self):
-        script = (ROOT / "ui" / "artwork-settings.js").read_text()
+        script = (ROOT / "ui" / "artwork-settings.js").read_text(encoding="utf-8")
         self.assertNotIn("fetch(", script)
         self.assertIn("api('/api/settings/artwork'", script)
-        page = (ROOT / "ui" / "index.html").read_text()
+        page = (ROOT / "ui" / "index.html").read_text(encoding="utf-8")
         self.assertLess(page.index("async function api("), page.index('<script src="/artwork-settings.js">'))