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

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

@@ -0,0 +1,35 @@
+---
+title: add
+description: Add addons or deployment to an existing project
+---
+
+## Usage
+
+<Tabs items={['bun', 'pnpm', 'npm']}>
+  <Tab value="bun">
+    ```bash
+    bun create better-t-stack@latest add [options]
+    ```
+  </Tab>
+  <Tab value="pnpm">
+    ```bash
+    pnpm create better-t-stack@latest add [options]
+    ```
+  </Tab>
+  <Tab value="npm">
+    ```bash
+    npx create-better-t-stack@latest add [options]
+    ```
+  </Tab>
+</Tabs>
+
+### Options
+
+- `--addons` Multiple values
+- `--web-deploy` One of: `workers`, `none`
+- `--project-dir` Path
+- `--install` / `--no-install`
+- `--package-manager` One of: `bun`, `pnpm`, `npm`
+
+See also: [Compatibility](/docs/compatibility)
+

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

@@ -0,0 +1,25 @@
+---
+title: builder
+description: Open the web-based stack builder
+---
+
+## Usage
+
+<Tabs items={['bun', 'pnpm', 'npm']}>
+  <Tab value="bun">
+    ```bash
+    bun create better-t-stack@latest builder
+    ```
+  </Tab>
+  <Tab value="pnpm">
+    ```bash
+    pnpm create better-t-stack@latest builder
+    ```
+  </Tab>
+  <Tab value="npm">
+    ```bash
+    npx create-better-t-stack@latest builder
+    ```
+  </Tab>
+</Tabs>
+

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

@@ -0,0 +1,25 @@
+---
+title: docs
+description: Open the documentation
+---
+
+## Usage
+
+<Tabs items={['bun', 'pnpm', 'npm']}>
+  <Tab value="bun">
+    ```bash
+    bun create better-t-stack@latest docs
+    ```
+  </Tab>
+  <Tab value="pnpm">
+    ```bash
+    pnpm create better-t-stack@latest docs
+    ```
+  </Tab>
+  <Tab value="npm">
+    ```bash
+    npx create-better-t-stack@latest docs
+    ```
+  </Tab>
+</Tabs>
+

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

@@ -0,0 +1,23 @@
+---
+title: CLI
+description: Command reference index
+---
+
+<Cards>
+  <Card href="/docs/cli/init" title="init">
+    Create a new Better‑T‑Stack project (prompts or --yes)
+  </Card>
+  <Card href="/docs/cli/add" title="add">
+    Add addons or deployment to an existing project
+  </Card>
+  <Card href="/docs/cli/builder" title="builder">
+    Open the web-based Stack Builder
+  </Card>
+  <Card href="/docs/cli/docs" title="docs">
+    Open documentation
+  </Card>
+  <Card href="/docs/cli/sponsors" title="sponsors">
+    View project sponsors
+  </Card>
+</Cards>
+

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)
+

apps/web/content/docs/cli/meta.json

@@ -0,0 +1,5 @@
+{
+	"title": "CLI",
+	"defaultOpen": true,
+	"pages": ["index", "init", "add", "builder", "docs", "sponsors"]
+}

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

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+---
+title: sponsors
+description: View project sponsors
+---
+
+## Usage
+
+<Tabs items={['bun', 'pnpm', 'npm']}>
+  <Tab value="bun">
+    ```bash
+    bun create better-t-stack@latest sponsors
+    ```
+  </Tab>
+  <Tab value="pnpm">
+    ```bash
+    pnpm create better-t-stack@latest sponsors
+    ```
+  </Tab>
+  <Tab value="npm">
+    ```bash
+    npx create-better-t-stack@latest sponsors
+    ```
+  </Tab>
+</Tabs>
+