Fix connect-time username prompt being unreachable for SSH/RDP

validateProfileForConnect() still hard-failed with a blocking
QMessageBox for a blank SSH/RDP username, running before
requestConnectOptions() ever got a chance to prompt for it inline --
so the connect-time username prompt added for issue #21 was dead code
in practice; users just got told to go edit the profile instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.21)
 
-project(OrbitHub VERSION 2026.9.16.2 LANGUAGES CXX)
+project(OrbitHub VERSION 2026.9.16.4 LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

docs/PROGRESS.md

@@ -175,6 +175,24 @@ Delivered:
   cleanly rather than sending Apple auth a blank username. The value is
   kept on the tab's in-memory profile copy for its lifetime, not written
   back to the saved profile
+- The blank-username relaxation above initially only covered
+  `ProfileDialog`'s own save-time validation; `ProfileRepository::
+  isProfileValid()` had the identical "username required for SSH/RDP"
+  check independently, called directly by `insertProfile()`/
+  `updateProfile()` -- which is exactly the path mRemoteNG import uses
+  (it builds `Profile` objects and inserts them directly, never going
+  through the dialog), so importing any SSH/RDP entry without a
+  username still failed outright until this second check was found and
+  removed too
+- A third, independent username check was still live even after the two
+  above were removed: `SessionTab::validateProfileForConnect()` (run at
+  the very top of `connectSession()`/`reconnectSession()`, before
+  `requestConnectOptions()` ever gets a chance to run its async prompt)
+  had its own hard-fail "SSH/RDP username is required" `QMessageBox`,
+  so a blank-username profile still couldn't connect at all -- it just
+  told the user to go edit the profile instead of ever prompting inline.
+  Removed; connect-time prompting is now the only username gate for
+  SSH/RDP
 - Robustness fix: an unrecognized `FramebufferUpdate` rectangle encoding
   used to abort the connection generically; `kAnnouncedEncodings` is now
   the single source of truth for what `SetEncodings` announces and what

src/profile_repository.cpp

@@ -235,13 +235,6 @@ bool isProfileValid(const Profile& profile, QString* error)
     }
 
     const QString protocol = normalizedProtocol(profile.protocol);
-    if ((protocol == QStringLiteral("SSH") || protocol == QStringLiteral("RDP"))
-        && profile.username.trimmed().isEmpty()) {
-        if (error != nullptr) {
-            *error = QStringLiteral("Username is required for %1 profiles.").arg(protocol);
-        }
-        return false;
-    }
 
     const QString authMode = normalizedAuthMode(protocol, profile.authMode);
     if (protocol == QStringLiteral("SSH") && authMode == QStringLiteral("Private Key")

src/session_tab.cpp

@@ -1181,14 +1181,10 @@ bool SessionTab::validateProfileForConnect()
         return false;
     }
 
-    if ((m_profile.protocol.compare(QStringLiteral("SSH"), Qt::CaseInsensitive) == 0
-         || m_profile.protocol.compare(QStringLiteral("RDP"), Qt::CaseInsensitive) == 0)
-        && m_profile.username.trimmed().isEmpty()) {
-        QMessageBox::warning(this,
-                             QStringLiteral("Connect"),
-                             QStringLiteral("%1 username is required.").arg(m_profile.protocol));
-        return false;
-    }
+    // SSH/RDP no longer hard-require a username here -- a blank one is
+    // handled by requestConnectOptions() prompting for it inline at connect
+    // time (see issue #21). Do not re-add a check here without also
+    // updating that flow.
 
     return true;
 }

tests/test_profile_repository.cpp

@@ -48,7 +48,7 @@ private slots:
     void createProfileRejectsMissingName();
     void createProfileRejectsMissingHost();
     void createProfileRejectsInvalidPort();
-    void createProfileRejectsMissingUsernameForSsh();
+    void createProfileAllowsMissingUsernameForSsh();
     void createProfileRejectsMissingPrivateKeyForKeyAuth();
     void createProfileRejectsDuplicateName();
     void updateProfilePersistsChanges();
@@ -156,11 +156,17 @@ void TestProfileRepository::createProfileRejectsInvalidPort()
     QVERIFY(!m_repo->createProfile(profile).has_value());
 }
 
-void TestProfileRepository::createProfileRejectsMissingUsernameForSsh()
+void TestProfileRepository::createProfileAllowsMissingUsernameForSsh()
 {
+    // SSH/RDP no longer require a username at save time (issue #21) --
+    // among other things, this unblocks importing mRemoteNG entries that
+    // don't have one recorded, which used to fail outright. The user is
+    // asked for it at connect time instead (see SessionTab).
     Profile profile = makeSshProfile();
     profile.username.clear();
-    QVERIFY(!m_repo->createProfile(profile).has_value());
+    const auto created = m_repo->createProfile(profile);
+    QVERIFY(created.has_value());
+    QVERIFY(created->username.isEmpty());
 }
 
 void TestProfileRepository::createProfileRejectsMissingPrivateKeyForKeyAuth()