Release v0.6.36: offload notification registration and mitigate Viber paste timing

tests/integration.cpp

@@ -529,6 +529,9 @@ LRESULT CALLBACK procedure(HWND w, UINT msg, WPARAM wp, LPARAM lp)
                 require(text() == L"wrong ", "unrelated selection remains rejected with trimmed clipboard");
                 app->settings.autoCorrect = true;
                 app->settings.autoLanguages = {L"en", L"ru"};
+                // The worker now shares the predictor's immutable dictionaries.
+                // This fixture changes settings directly instead of applySettings.
+                app->autoPredictor.configure(L"dictionaries", app->settings.autoLanguages);
                 app->autoCorrector = ks::AutoCorrector{};
                 ActivateKeyboardLayout(app->layouts[en].handle, 0);
                 prepare(L"ghbdtn ", false);
@@ -556,9 +559,22 @@ LRESULT CALLBACK procedure(HWND w, UINT msg, WPARAM wp, LPARAM lp)
                 require(trimmedCopies >= 7, "fixture actually stripped spaces during recovery scenarios");
                 pasteBehavior = 0;
                 trimCopiedSpaces = false;
-                finish();
+                // User-selected middle range, followed by the same command with
+                // no selection: retain both surrounding text and trailing spaces.
+                prepare(L"OLDghbdtn  NEXT", false);
+                SendMessageW(field, EM_SETSEL, 3, 11);
+                app->transform(ks::Direct + ru);
                 break;
             }
+            case 58:
+                require(text() == L"OLDпривет  NEXT", "explicit middle selection preserves surrounding text");
+                app->transform(ks::Direct + en);
+                break;
+            case 59:
+                require(text() == L"OLDghbdtn  NEXT", "hotkey without selection reconverts only the previous middle range");
+                require(ks::readClipboard(app->window).text() == sentinel, "selected and repeated conversions restore clipboard");
+                finish();
+                break;
             case 30:
             case 32:
             case 34: