Sprint 1: Foundations

Deployed skeleton with database, seed catalog, layout shell, tests and CI.

What's Changed

• chore: add env example and allow it in gitignore by @romulojr-dev in #12
• feat: add spec schemas and seed the catalog by @romulojr-dev in #14
• feat: add the layout shell with header and footer by @romulojr-dev in #15
• chore: add test tooling and CI by @romulojr-dev in #16
• feat: list seeded products on /products by @romulojr-dev in #17

Full Changelog: https://github.com/romulojr-dev/pc-ecommerce/commits/v0.1.0