[countradooku]

Summary

• Replaces the first version of this PR's Windows app. None of its code or design is kept.
• core/crates/ffi (tablepro-ffi): one UniFFI API over the core's sessions, drivers, catalog and connection library, with the 9 engines of the first release linked in.
  • Rows go into a columnar result set in the core. The grid reads it through a C ABI, tablepro_cursor_fetch, one packed window per visible range.
  • The core keeps saved connections, groups, favorites and tags, and their secrets (Credential Manager on Windows). It connects them, tests a connection and parses connection URLs.
  • The core writes every sorted and paged statement: DatabaseSession::table_query over build_page, sorted_query over sql_syntax::with_order_by and sort_reference, and counts a table's rows.
  • value::order moves from the Linux app into the core, and ResultSet::sorted sorts the rows a result holds (core ADR 0007).
  • The FFI also reports the transaction a run leaves open, session health and which secret is missing. Each engine's family comes from the core.
• windows/: .NET 10 and WinUI 3, Windows 10 1809+ and 11, x64 and Arm64 (ADR 0001).
  • TablePro.Interop: committed, internal UniFFI and csbindgen bindings under a hand-written public API. Calls start on the thread pool; a CancellationToken fires the core's cancel token.
  • TablePro.Editor: our own SQL editor. A rope with its own undo, multiple carets and find in a plain .NET model; Direct2D and DirectWrite in a SwapChainPanel; TSF for input methods; a UIA text provider; colors from the core's lexer (ADR 0002).
  • TablePro.DataGrid: our own read-only grid. ItemsRepeater rows draw their visible cells with DirectWrite into composition surfaces; frozen columns, Excel keys and copy, UIA peers, header sort and resize, columns sized to content (ADR 0003).
  • TablePro.App: one window with the TitleBar, a MenuBar and a NavigationView rail of open connections, each item with its engine's icon in the connection's color (ADR 0004).
  • Connections page: groups, favorites, tags, search, selection mode, drag and drop into groups and Favorites, rename in place.
  • Connection form in an owned window: engines by family with their artwork, URL paste, SSH, SSL and options sections, Test, Connect and Save.
  • Workspace per connection: object tree in a resizable pane, query and table tabs, Reopen closed tab, table paging with the server's row count.
  • Bars: a password prompt when none is saved, a transaction bar with Commit and Roll back, a bar naming another tab's open transaction, and a reconnect bar from the session's health.
  • Settings as a page; window placement and the session are restored.
• CI: a windows suite in the change detector and windows.yml. Core and .NET tests on windows-2025, windows-11-arm and macos-15; the app's UI tests with screenshots on both Windows runners; a stale bindings check on macOS. The grid's timing gate runs by dispatch (windows-grid-gate.yml).
• test_unknown_suite_exits_2 used windows as its unknown suite and now uses android.
• Not in this PR: cell editing, packaging and signing, importers from other apps, tab tear-out, a page size picker, the driver plugin ABI on Windows.

Test plan

• cargo test -p tablepro-ffi and the core's ordering, sort reference, tag, paging and health tests. Linux CI runs the workspace: 871 core tests and the app suite.
• dotnet test --solution TablePro.slnx on x64, Arm64 and macOS: 217 tests over the interop library against real SQLite files, the editor model, the grid model with the real core and the app model.
• TablePro.App.UITests (FlaUI), light and dark, on both Windows runners: first run, Settings, the form, connecting, password prompt, a table, its sort and paging, a width set through UIA kept across sorts, a query and its sort, a script's rows sorted where they are, transactions, reopened tabs, pane resize, window placement, tags, rename, drag and drop, selection, a failed connect, session restore.
• 32 UI tests per runner in run 41588147784. Run 41575653721 ran them 4 times on each runner: 128/128 on x64 and 128/128 on Arm64.
• Editor gate on a 5 MB script: typing p95 under 11 ms on both runners; Telex and Pinyin compose at the caret (ADR 0002).
• Grid gate over a million rows by 200 columns, worst step in ms, Arm64 / x64 (run 41530931997): page down 22.6 / 15.9, random rows 25.3 / 14.0, page right 30.0 / 22.9, random x and y 32.5 / 27.9.

Screenshots

From the UI tests on windows-2025 (WARP), run 41588147784. Arm64 matches. The two reconnect bars come from run 41577633514, with an uncommitted patch that forces the session's health; a runner cannot drop a session.

	Light	Dark
First run
New connection: engine
New connection: details
Form error
Connecting
Connect failed
Password prompt
Workspace
Rail item in the connection's color
Object pane resized
Table
Table sorted by Title
Table paged
Script sorted where it is
Closed tab reopened
Open transaction
Transaction in another tab
Reconnecting
Reconnect failed
Settings
Connections with engine marks
Rename in place
Tagged connection
Dropped into a group
Selection mode: one connection, both rows