Add README files to all published @hexclave npm packages

Co-Authored-By: mantra <mantra@stack-auth.com>

packages/cli/README.md

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+# @hexclave/cli
+
+The CLI for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install -g @hexclave/cli
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/dashboard-ui-components/README.md

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+# @hexclave/dashboard-ui-components
+
+Pre-built dashboard UI components for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install @hexclave/dashboard-ui-components
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/sc/README.md

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+# @hexclave/sc
+
+Server components support for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install @hexclave/sc
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/shared-backend/README.md

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+# @hexclave/shared-backend
+
+Shared backend utilities for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install @hexclave/shared-backend
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/shared/README.md

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+# @hexclave/shared
+
+Shared utilities and types for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install @hexclave/shared
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/template/README.md

@@ -1,10 +1,21 @@
-# This package has been renamed.
+# Hexclave SDK
 
-Stack Auth is now Hexclave! The new packages are:
+The official SDK for [Hexclave](https://hexclave.com) — open-source authentication and user management.
 
-- @hexclave/next
-- @hexclave/react
-- @hexclave/js
-- @hexclave/cli
+## Packages
 
-See the [migration guide](https://docs.hexclave.com/migration) for more information.
+- [`@hexclave/next`](https://www.npmjs.com/package/@hexclave/next) — Next.js SDK
+- [`@hexclave/react`](https://www.npmjs.com/package/@hexclave/react) — React SDK
+- [`@hexclave/js`](https://www.npmjs.com/package/@hexclave/js) — JavaScript SDK
+- [`@hexclave/tanstack-start`](https://www.npmjs.com/package/@hexclave/tanstack-start) — TanStack Start SDK
+- [`@hexclave/cli`](https://www.npmjs.com/package/@hexclave/cli) — CLI
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)

packages/ui/README.md

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+# @hexclave/ui
+
+UI components for [Hexclave](https://hexclave.com) — open-source authentication and user management.
+
+## Installation
+
+```bash
+npm install @hexclave/ui
+```
+
+## Documentation
+
+Full documentation is available at [docs.hexclave.com](https://docs.hexclave.com).
+
+## Links
+
+- [Hexclave](https://hexclave.com)
+- [Documentation](https://docs.hexclave.com)
+- [GitHub](https://github.com/hexclave/hexclave)