feat(web): improve docs and refactor cli (#476)

apps/web/content/docs/cli/init.mdx

@@ -0,0 +1,35 @@
+---
+title: init
+description: Create a new Better-T-Stack project
+---
+
+## Usage
+
+<Tabs items={['bun', 'pnpm', 'npm']}>
+  <Tab value="bun">
+    ```bash
+    bun create better-t-stack@latest [project-directory]
+    ```
+  </Tab>
+  <Tab value="pnpm">
+    ```bash
+    pnpm create better-t-stack@latest [project-directory]
+    ```
+  </Tab>
+  <Tab value="npm">
+    ```bash
+    npx create-better-t-stack@latest [project-directory]
+    ```
+  </Tab>
+</Tabs>
+
+You can pass `.` to use the current directory.
+
+### Skip prompts
+
+```bash
+bun create better-t-stack@latest my-app --yes
+```
+
+See also: [Compatibility](/docs/compatibility)
+