chore: contributor workflow — templates, git-cliff, gitea-workflow doc (closes #31) (#38)

CHANGELOG.md

@@ -0,0 +1,20 @@
+# Changelog
+
+All notable changes to this project. Generated from Conventional Commits by git-cliff.
+
+## Unreleased
+
+### CI
+- Gitea Actions pipeline + runner runbook (refs #30) (#37)
+
+### Chores
+- Add idempotent Gitea backlog seeder
+- Remove bootstrap scripts from main (#35)
+
+### Documentation
+- Split S-00 into sub-slices (refs #1) (#33)
+
+### Features
+- Placeholder BFF + /health endpoint (closes #28) (#34)
+- Containerize BFF + compose-up smoke (closes #29) (#36)
+