Release v0.4.1: harden update checksum and fix Settings overlap

tests/input.cpp

@@ -487,6 +487,11 @@ int main(int argc, char **argv) {
             ks::showSettings(app,false);
             auto settings=app.settingsWindow;
             require(settings&&!IsWindowVisible(settings),"settings layout tested without changing user focus");
+            for(auto pair:{std::pair{207,215},std::pair{207,232},std::pair{207,220},std::pair{232,230},std::pair{230,231},std::pair{231,253}}) {
+                RECT first{},second{},overlap{};
+                GetWindowRect(GetDlgItem(settings,pair.first),&first); GetWindowRect(GetDlgItem(settings,pair.second),&second);
+                require(!IntersectRect(&overlap,&first,&second),"capture hotkey and layout controls do not overlap");
+            }
             RECT frame{},client{},cancel{};
             GetWindowRect(settings,&frame);
             MONITORINFO monitor{sizeof(monitor)};

tests/update.ps1

@@ -43,6 +43,11 @@ try {
     $sum=Join-Path $root 'SHA256SUMS.txt'
     ((Get-FileHash -LiteralPath $archive -Algorithm SHA256).Hash+'  KSwitcher-win-x64.zip') | Set-Content -LiteralPath $sum
     Assert-Checksum $archive $sum; ++$script:checks
+    & {
+        function Get-FileHash { throw 'Get-FileHash unavailable in inherited module environment' }
+        Assert-Checksum $archive $sum
+    }
+    ++$script:checks
     $stage=Join-Path $root 'stage'
     Expand-Release $archive $stage $binaryVersion; ++$script:checks
     Reject { Expand-Release $archive (Join-Path $root 'wrong-version') ([version]'9.0.0') } 'version mismatch rejected'