0.8.0: pretty logger (Log) + crash capture

- Log: static entry + scoped Loggers (Log.tag), six levels, lazy messages,
  structured fields, ANSI ConsoleSink, DeveloperSink, MemorySink, NoopSink.
  Sinks compose via +; throwing sinks are isolated.
- Log.configure wires FlutterError/PlatformDispatcher/isolate errors through
  Log.e by default; log-then-rethrow deduped via Expando.
- UxKeyboard: migrate kDebugMode print() to Log.tag('KB').d lazily.
- Depend on package:clock for testable timestamps.

pubspec.yaml

@@ -3,7 +3,7 @@ description: >-
   Flutter toolkit for fluid, native-feeling UIs. Includes frame-accurate
   keyboard height tracking via FFI with interactive dismiss, bezier utilities,
   and layout primitives.
-version: 0.7.0
+version: 0.8.0
 homepage: https://swipelab.co/ux.html
 repository: https://github.com/swipelab/ux
 issue_tracker: https://github.com/swipelab/ux/issues
@@ -21,6 +21,7 @@ dependencies:
     sdk: flutter
   matcher: ^0.12.16
   build: ^2.4.0
+  clock: ^1.1.1
 
 dev_dependencies:
   flutter_lints: ^6.0.0