Add VitePress docs site with MoonBit highlighting

docs/index.md

@@ -0,0 +1,34 @@
+---
+layout: home
+
+hero:
+  name: BitLogger
+  text: Structured logging for MoonBit
+  tagline: API reference, examples, and release notes for BitLogger.
+  actions:
+    - theme: brand
+      text: Open API Reference
+      link: /api/
+    - theme: alt
+      text: Read Release Notes
+      link: /changes/
+    - theme: alt
+      text: Mooncake Package
+      link: https://mooncakes.io/docs/Nanaloveyuki/BitLogger
+
+features:
+  - title: Structured logging
+    details: Levels, targets, message fields, and configurable text or JSON output.
+  - title: Sync and async paths
+    details: API reference covers both the main package and the async package surface.
+  - title: Config and runtime helpers
+    details: Browse builders, presets, file helpers, queue helpers, and verification notes quickly.
+---
+
+## Start Here
+
+<HomeDocHub />
+
+- Use [API Reference](./api/index.md) when you want the canonical one-file-per-public-API docs.
+- Use [Release Notes](./changes/index.md) when you want version-scoped changes and publish-facing summaries.
+- Use [Chinese README](https://github.com/Nanaloveyuki/BitLogger/blob/main/README.md) or [English README](./README-en.md) when you want a shorter project overview first.