docs: add shieldcn.dev badge group to README (#150)

* docs: add shieldcn.dev badge group to README

Add a single shieldcn.dev badge group (stars + license + sponsors) to
the template README using variant=branded, size=xs, theme=zinc,
mode=dark.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: switch to static license and sponsors shieldcn segments

github/license and github/sponsors did not resolve in shieldcn. Replace
them with static badge/ segments so they always render.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: split shieldcn group into individual linkable badges

Each badge is now a separate <img> wrapped in its own anchor (via
reference-style link definitions), so the stars chip links to the repo,
license to the LICENSE file, sponsors to the sponsor page.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: drop sponsors badge from root README

No npm package on the template monorepo root, so the sponsors badge has
no Node-version counterpart. The stars and license badges remain.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: add shieldcn badges to template-core and template-demo READMEs

Each package gets the same five chips as the other publishable READMEs:
npm version, downloads, stars, license, and Node version.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: link npm package badges via npmx.dev instead of npmjs.com

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: add Codecov badge to root README

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: use variant=secondary and size=sm on all shieldcn badges

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: enforce variant=secondary and size=xs on all shieldcn badges

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: drop mode=dark from license shieldcn URLs

Match the shieldcn doc format for license badges: ?variant=secondary&size=xs&theme=zinc with no mode override.

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

* docs: switch root license badge to npm/license/@stijnvanhulle/template-core

https://claude.ai/code/session_013waRRjU1q7UcNXb3Tnnvqa

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: stijnvanhulle

README.md

@@ -1,5 +1,9 @@
 <div align="center">
 
+[![Stars][stars-src]][stars-href]
+[![License][license-src]][license-href]
+[![Coverage][coverage-src]][coverage-href]
+
   <h4>
     <a href="https://github.com/stijnvanhulle/template/issues/">Report Bug</a>
     <span> · </span>
@@ -161,3 +165,12 @@ See [CONTRIBUTING.md](./CONTRIBUTING.md) for the project structure, prerequisite
 ## License
 
 [MIT](./LICENSE) © Stijn Van Hulle
+
+<!-- Badges -->
+
+[stars-src]: https://shieldcn.dev/github/stars/stijnvanhulle/template.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[stars-href]: https://github.com/stijnvanhulle/template
+[license-src]: https://shieldcn.dev/npm/license/@stijnvanhulle/template-core.svg?variant=secondary&size=xs&theme=zinc
+[license-href]: https://github.com/stijnvanhulle/template/blob/main/LICENSE
+[coverage-src]: https://shieldcn.dev/codecov/github/stijnvanhulle/template.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[coverage-href]: https://app.codecov.io/gh/stijnvanhulle/template

packages/core/README.md

@@ -1 +1,24 @@
+<div align="center">
+
+[![npm version][npm-version-src]][npm-version-href]
+[![npm downloads][npm-downloads-src]][npm-downloads-href]
+[![Stars][stars-src]][stars-href]
+[![License][license-src]][license-href]
+[![Node][node-src]][node-href]
+
+</div>
+
 # Core
+
+<!-- Badges -->
+
+[npm-version-src]: https://shieldcn.dev/npm/v/@stijnvanhulle/template-core.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[npm-version-href]: https://npmx.dev/package/@stijnvanhulle/template-core
+[npm-downloads-src]: https://shieldcn.dev/npm/dm/@stijnvanhulle/template-core.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[npm-downloads-href]: https://npmx.dev/package/@stijnvanhulle/template-core
+[stars-src]: https://shieldcn.dev/github/stars/stijnvanhulle/template.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[stars-href]: https://github.com/stijnvanhulle/template
+[license-src]: https://shieldcn.dev/npm/license/@stijnvanhulle/template-core.svg?variant=secondary&size=xs&theme=zinc
+[license-href]: https://github.com/stijnvanhulle/template/blob/main/LICENSE
+[node-src]: https://shieldcn.dev/npm/node/@stijnvanhulle/template-core.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[node-href]: https://npmx.dev/package/@stijnvanhulle/template-core

packages/demo/README.md

@@ -1 +1,24 @@
+<div align="center">
+
+[![npm version][npm-version-src]][npm-version-href]
+[![npm downloads][npm-downloads-src]][npm-downloads-href]
+[![Stars][stars-src]][stars-href]
+[![License][license-src]][license-href]
+[![Node][node-src]][node-href]
+
+</div>
+
 # Demo
+
+<!-- Badges -->
+
+[npm-version-src]: https://shieldcn.dev/npm/v/@stijnvanhulle/template-demo.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[npm-version-href]: https://npmx.dev/package/@stijnvanhulle/template-demo
+[npm-downloads-src]: https://shieldcn.dev/npm/dm/@stijnvanhulle/template-demo.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[npm-downloads-href]: https://npmx.dev/package/@stijnvanhulle/template-demo
+[stars-src]: https://shieldcn.dev/github/stars/stijnvanhulle/template.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[stars-href]: https://github.com/stijnvanhulle/template
+[license-src]: https://shieldcn.dev/npm/license/@stijnvanhulle/template-demo.svg?variant=secondary&size=xs&theme=zinc
+[license-href]: https://github.com/stijnvanhulle/template/blob/main/LICENSE
+[node-src]: https://shieldcn.dev/npm/node/@stijnvanhulle/template-demo.svg?variant=secondary&size=xs&theme=zinc&mode=dark
+[node-href]: https://npmx.dev/package/@stijnvanhulle/template-demo