Replace docsify with Starlight for docs site

Docsify has an unfixable vulnerability in its marked dependency.
Starlight (Astro) provides a modern, maintained alternative.

- Scaffold Starlight project in docs/ with isolated dependencies
- Sync script derives docs content from root README.md
- Add GitHub Actions workflow for Pages deployment
- Bump CI actions from v3 to v4

Author: terehov

.github/workflows/ci.yml

@@ -19,9 +19,9 @@ jobs:
             COVERAGE: ${{ matrix.node-version == '20.x' && true || false }}
 
         steps:
-            - uses: actions/checkout@v3
+            - uses: actions/checkout@v4
             - name: Use Node.js ${{ matrix.node-version }}
-              uses: actions/setup-node@v3
+              uses: actions/setup-node@v4
               with:
                   node-version: ${{ matrix.node-version }}
             - run: npm ci
@@ -34,13 +34,13 @@ jobs:
             - name: Run browser tests
               run: npm run test:browser
             - name: Report coverage
-              uses: codecov/codecov-action@v3
+              uses: codecov/codecov-action@v4
 
     test-bun:
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v3
-            - uses: actions/setup-node@v3
+            - uses: actions/checkout@v4
+            - uses: actions/setup-node@v4
               with:
                   node-version: 20.x
             - uses: oven-sh/setup-bun@v2
@@ -53,8 +53,8 @@ jobs:
     test-deno:
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v3
-            - uses: actions/setup-node@v3
+            - uses: actions/checkout@v4
+            - uses: actions/setup-node@v4
               with:
                   node-version: 20.x
             - uses: denoland/setup-deno@v2

.github/workflows/docs.yml

@@ -0,0 +1,46 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - "docs/**"
+      - "README.md"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - name: Install docs dependencies
+        run: npm ci
+        working-directory: docs
+      - name: Build docs
+        run: npm run build
+        working-directory: docs
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/dist
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@v4

.gitignore

@@ -94,3 +94,7 @@ bower_components
 AGENTS.md
 CLAUDE.md
 .claude/
+
+# Astro (docs)
+docs/.astro/
+docs/src/content/docs/

README.md

@@ -1,4 +1,4 @@
-# 📝 tslog: Beautiful logging experience for TypeScript and JavaScript
+# Beautiful logging experience for TypeScript
 
 [![lang: Typescript](https://img.shields.io/badge/Language-Typescript-Blue.svg?style=flat-square)](https://www.typescriptlang.org)
 ![License: MIT](https://img.shields.io/npm/l/tslog?logo=tslog&style=flat-square)