SwiftDBAI: natural language queries for any SQLite database

Drop-in SwiftUI chat view, headless ChatEngine, LLM-agnostic via
AnyLanguageModel. Read-only by default with configurable allowlists.
Robust SQL parser with 63 tests. Includes demo app with GitHub stars dataset.

screenshots/GALLERY.md

@@ -0,0 +1,61 @@
+# SwiftDBAI Screenshots
+
+## Query Results
+
+Bar chart and data table from a natural language query against a GitHub stars database.
+
+![Results with chart](results-chart.png)
+
+## Customization
+
+### Custom Theme
+
+Purple accent, custom placeholder ("Search GitHub repos..."), custom empty state icon and text.
+
+```swift
+var config = ChatViewConfiguration.default
+config.userBubbleColor = .purple
+config.accentColor = .purple
+config.inputPlaceholder = "Search GitHub repos..."
+config.emptyStateTitle = "Explore GitHub Data"
+config.emptyStateIcon = "star.circle"
+
+DataChatView(databasePath: path, model: myLLM)
+    .chatViewConfiguration(config)
+```
+
+| Empty state | With results |
+|---|---|
+| ![Custom empty](custom-theme.png) | ![Custom results](custom-results.png) |
+
+### Dark Theme
+
+```swift
+DataChatView(databasePath: path, model: myLLM)
+    .chatViewConfiguration(.dark)
+```
+
+![Dark theme](dark-theme.png)
+
+### Compact Theme
+
+```swift
+DataChatView(databasePath: path, model: myLLM)
+    .chatViewConfiguration(.compact)
+```
+
+![Compact theme](compact-theme.png)
+
+## Presentation Modes
+
+![Presentation modes](presentation-modes.png)
+
+### Sheet
+
+```swift
+.sheet(isPresented: $showChat) {
+    DataChatSheet(databasePath: path, model: myLLM, title: "GitHub Stars")
+}
+```
+
+![Sheet presentation](sheet-presentation.png)