presentation: add ASBPresentation foundation

Package.swift

@@ -14,6 +14,18 @@ let package = Package(
             name: "SwiftASB",
             targets: ["SwiftASB"]
         ),
+        .library(
+            name: "ASBPresentation",
+            targets: ["ASBPresentation"]
+        ),
+        .library(
+            name: "ASBAppKit",
+            targets: ["ASBAppKit"]
+        ),
+        .library(
+            name: "ASBSwiftUI",
+            targets: ["ASBSwiftUI"]
+        ),
     ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-async-algorithms", from: "1.1.0"),
@@ -27,10 +39,34 @@ let package = Package(
                 .product(name: "AsyncAlgorithms", package: "swift-async-algorithms"),
             ]
         ),
+        .target(
+            name: "ASBPresentation",
+            dependencies: ["SwiftASB"]
+        ),
+        .target(
+            name: "ASBAppKit",
+            dependencies: ["ASBPresentation", "SwiftASB"]
+        ),
+        .target(
+            name: "ASBSwiftUI",
+            dependencies: ["ASBAppKit", "ASBPresentation", "SwiftASB"]
+        ),
         .testTarget(
             name: "SwiftASBTests",
             dependencies: ["SwiftASB"]
         ),
+        .testTarget(
+            name: "ASBPresentationTests",
+            dependencies: ["ASBPresentation"]
+        ),
+        .testTarget(
+            name: "ASBAppKitTests",
+            dependencies: ["ASBAppKit", "ASBPresentation"]
+        ),
+        .testTarget(
+            name: "ASBSwiftUITests",
+            dependencies: ["ASBAppKit", "ASBPresentation", "ASBSwiftUI"]
+        ),
     ],
     swiftLanguageModes: [.v6]
 )

ROADMAP.md

@@ -471,12 +471,16 @@ workflow earns them in a later feature release.
   package docs and DocC as the source of truth for SwiftASB behavior, then sync
   the plugin when public API, examples, compatibility windows, diagnostics,
   approval handling, validation, or recommended integration shape changes.
-- [ ] Basic SwiftUI component library for SwiftASB consumers. Start with small,
-  copyable components that demonstrate the stable observable companions:
-  dashboard status, turn minimap call snapshots, recent turns, recent files,
-  recent commands, diagnostics, and approval/elicitation prompts. Keep this as a
-  development aide and example surface first; do not let it blur the core
-  package API or force an app-specific design system into the library.
+- [ ] Hybrid presentation and UI component targets for SwiftASB consumers. The
+  package now has `ASBPresentation`, `ASBAppKit`, and `ASBSwiftUI` targets, and
+  `ASBPresentation` now has the framework-neutral foundation for sidebar, turn
+  timeline, recent activity, agenda, dashboard, selection state, viewport hints,
+  and typed UI intents. Next, add `ASBAppKit` dense macOS renderers such as
+  thread sidebars and turn timelines, then add `ASBSwiftUI` native light panels
+  plus SwiftUI wrappers around AppKit-backed dense components. Keep `SwiftASB`
+  as the runtime source of truth and avoid letting AppKit or SwiftUI own
+  separate thread-list, timeline, cache, or action models. See
+  [`docs/maintainers/presentation-ui-targets-plan.md`](docs/maintainers/presentation-ui-targets-plan.md).
 
 ### Public API Curation
 

Sources/ASBAppKit/ASBAppKitModule.swift

@@ -0,0 +1,7 @@
+import AppKit
+import ASBPresentation
+import SwiftASB
+
+struct ASBAppKitModule: Sendable {
+    static let name = "ASBAppKit"
+}