Merges our Spring Boot guidelines with concrete Git workflow, docs, repo hygiene, and CI patterns—focused on a configurable SaaS MVP that ships small slices fast.
- Goal: Ship a configurable SaaS MVP quickly, with swappable integrations and safe dark‑launches.
- Style: Trunk‑Based Development (tiny PRs, feature flags, always‑green CI).
- Runtime: Java 21+, Spring Boot 3.x.