📝 docs(changelog): record PRs #67-#71 (#72)

Co-authored-by: Gabriel Radureau <arcodange@gmail.com>
Co-committed-by: Gabriel Radureau <arcodange@gmail.com>

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- ✨ `GET /api/v1/uptime` endpoint (PR #67) — returns server start_time and uptime_seconds
+- 📝 mkcert local HTTPS doc + Makefile `cert` target (PR #68) — prep for ADR-0028 Phase B OIDC callbacks
+- ✨ `pkg/auth/` skeleton for OpenID Connect (PR #69) — types + client surface, handlers come later (Phase B.3+)
+- 📝 ADR-0028 Phase B roadmap document (PR #71) — outlines remaining B.3 / B.4 / B.5 work
+
 ## [0.1.0] - 2026-05-05
 
 ### Added