test: stop requiring retired archive entrypoints in Python contracts

Flip archive tokens to must-not-appear on the session row and session hook only. Keep writeChatSession POST/PATCH and assert delete still uses DELETE. Grep tests/ before deleting frontend symbols.

tests/test_session_management_entrypoints.py

@@ -42,9 +42,6 @@ def test_chat_history_management_actions_are_exposed() -> None:
         "确认删除",
         "session-delete-overlay",
         "togglePinnedSession",
-        "toggleArchivedSession",
-        "showArchivedSessions",
-        "已归档，可在左侧归档中恢复。",
         "shareSession",
         "share_payload_version",
         "messages.map",
@@ -54,13 +51,22 @@ def test_chat_history_management_actions_are_exposed() -> None:
             "focus-within",
             "收藏",
         "重命名",
-        "归档",
-        "恢复",
         "删除",
         "转发",
         'fetch(`/api/sessions/${encodeURIComponent(session.id)}`',
     ):
         assert expected in source
+    row = SESSION_ROW.read_text(encoding="utf-8")
+    management = (_FRONTEND_SRC / "hooks" / "use-session-management.ts").read_text(encoding="utf-8")
+    for retired in (
+        "toggleArchivedSession",
+        "showArchivedSessions",
+        "已归档，可在左侧归档中恢复。",
+        "归档",
+        "恢复",
+    ):
+        assert retired not in row
+        assert retired not in management
 
 
 def test_chat_session_delete_is_server_controlled_and_granted() -> None:
@@ -74,16 +80,15 @@ def test_chat_session_delete_is_server_controlled_and_granted() -> None:
     assert 'using ((select auth.uid()) = user_id)' in migration.lower()
 
 
-def test_archiving_never_calls_the_delete_endpoint() -> None:
+def test_session_archive_is_retired_and_write_helper_still_patches() -> None:
     source = _home_surface()
     write_contract = SESSION_WRITE_CONTRACT.read_text(encoding="utf-8")
-    start = source.index("function toggleArchivedSession")
-    end = source.index("async function shareSession", start)
-    archive_action = source[start:end]
-    # Former tokens: setArchivedSessionIds and no `/api/sessions/` in the slice.
-    # Archive is now a metadata PATCH; the write helper uses PATCH for update.
-    assert 'writeChatSession(sessionId, { archived_at: nextArchivedAt }, "update")' in archive_action
-    assert "archived_at: nextArchivedAt" in archive_action
-    assert 'method: "DELETE"' not in archive_action
-    assert "DELETE" not in archive_action
+    assert "function toggleArchivedSession" not in source
+    assert "toggleArchivedView" not in source
+    assert 'writeChatSession(sessionId, { archived_at: nextArchivedAt }, "update")' not in source
+    assert "archived_at: nextArchivedAt" not in source
     assert 'method: mode === "create" ? "POST" : "PATCH"' in write_contract
+    start = source.index("async function deleteSession")
+    end = source.index("function togglePinnedSession", start)
+    delete_action = source[start:end]
+    assert 'method: "DELETE"' in delete_action