feat: defer from mobile detail sheets (#256)

tests/test_my_work.py

@@ -10,6 +10,7 @@ from src.views import dashboard
 
 MY_WORK = Path(__file__).parents[1] / "frontend" / "my-work.js"
 LATER_WORK = Path(__file__).parents[1] / "frontend" / "later-work.js"
+DETAIL_DEFER = Path(__file__).parents[1] / "frontend" / "detail-defer.js"
 REVIEW_SHEET = Path(__file__).parents[1] / "frontend" / "review-sheet.js"
 ISSUE_SHEET = Path(__file__).parents[1] / "frontend" / "issue-sheet.js"
 CREATE_ISSUE_SHEET = Path(__file__).parents[1] / "frontend" / "create-issue-sheet.js"
@@ -838,6 +839,65 @@ process.stdout.write(JSON.stringify({{
     }
 
 
+def test_detail_defer_closes_normal_triage_but_keeps_session_open_for_reconcile():
+    script = f"""
+const createDetailDefer = require({json.dumps(str(DETAIL_DEFER))});
+const calls = [];
+let sessionActive = false;
+const controller = createDetailDefer({{
+  laterWork: {{
+    presetUntil:preset => new Date(preset === 'today' ? '2026-08-08T16:00:00Z' : '2026-08-09T09:00:00Z'),
+    defer:(item, until) => {{ calls.push(['defer', item.title, until.toISOString()]); return true; }},
+  }},
+  session: {{ active:() => sessionActive }},
+  close:() => calls.push(['close']),
+  refresh:() => calls.push(['refresh']),
+  focus:() => calls.push(['focus']),
+  announce:message => calls.push(['announce', message]),
+  formatTime:value => value.toISOString(),
+}});
+const item = {{kind:'issue',repository:'stackchain/api',number:17,title:'Read first'}};
+const outside = controller.defer(item, 'today');
+sessionActive = true;
+const session = controller.defer(item, 'tomorrow');
+process.stdout.write(JSON.stringify({{outside,session,calls}}));
+"""
+
+    result = subprocess.run(
+        ["node", "-e", script], check=True, capture_output=True, text=True
+    )
+
+    assert json.loads(result.stdout) == {
+        "outside": True,
+        "session": True,
+        "calls": [
+            ["defer", "Read first", "2026-08-08T16:00:00.000Z"],
+            ["close"],
+            ["refresh"],
+            ["announce", "Deferred until 2026-08-08T16:00:00.000Z. It stays unread and unchanged in Gitea."],
+            ["focus"],
+            ["defer", "Read first", "2026-08-09T09:00:00.000Z"],
+            ["refresh"],
+            ["announce", "Deferred until 2026-08-09T09:00:00.000Z. It stays unread and unchanged in Gitea."],
+        ],
+    }
+
+
+@pytest.mark.anyio
+async def test_mobile_detail_sheets_offer_touch_safe_defer_without_a_gitea_mutation():
+    html = await dashboard()
+
+    assert '<script src="static/detail-defer.js"></script>' in html
+    assert html.count('class="detail-defer"') == 4
+    assert html.count('data-detail-defer-preset="today"') == 4
+    assert html.count('data-detail-defer-preset="tomorrow"') == 4
+    assert 'const detailDefer = createDetailDefer({' in html
+    assert 'selectedUpdate || selectedReview || selectedIssue || selectedPull' in html
+    assert "detailDefer.defer(item, button.dataset.detailDeferPreset)" in html
+    assert ".detail-defer summary, .detail-defer button { min-height:44px;" in html
+    assert "fetch(" not in DETAIL_DEFER.read_text()
+
+
 @pytest.mark.anyio
 async def test_mobile_my_work_wires_touch_safe_non_mutating_later_actions():
     html = await dashboard()

tests/test_service_worker.py

@@ -70,10 +70,10 @@ async function dispatchSync(tag) {{
     return json.loads(completed.stdout)
 
 
-def test_background_authored_sync_ships_in_a_new_shell_cache():
+def test_detail_defer_ships_in_a_new_shell_cache():
     source = WORKER.read_text()
 
-    assert "stackchain-dashboard-shell-v14" in source
+    assert "stackchain-dashboard-shell-v15" in source
 
 
 def test_background_sync_event_flushes_closed_app_issue_outbox_only_for_its_tag():
@@ -114,6 +114,7 @@ def test_install_precaches_complete_subpath_scoped_app_shell():
         "/dashboard/static/offline-work.js",
         "/dashboard/static/my-work.js",
         "/dashboard/static/later-work.js",
+        "/dashboard/static/detail-defer.js",
         "/dashboard/static/pick-work.js",
         "/dashboard/static/conversation.js",
         "/dashboard/static/issue-sheet.js",