Address review feedback on ce99f58:
- Merge the two '### Added' blocks in [Unreleased] into one (Keep a
Changelog: each category appears once). New 2026-07-06 entries now
sit at the top of the existing Added block.
- Add missing period after 'required SSE headers' in the liveness
verification prose (was a run-on sentence).
Record the Caddy reverse-proxy at /etc/caddy/ (14 *.localhost sites,
mkcert TLS, systemd caddy.service) as a manual override in
docs/tech/manual-overrides.md - no caddy Ansible role exists yet.
Add a 'Local Dev Services' section to docs/tech/stack.md listing all
*.localhost sites and useful Caddy commands.
New learning record docs/learnings/2026-07-06-caddy-onlyoffice-mcp-sse-
investigation.md: Caddy emits 'context canceled' SSE aborts (~1.5ms) on
onlyoffice.localhost/mcp -> localhost:3847. Upstream verified alive
(HTTP 406 to plain GET = expected). Handed off to GitLab issue
satware/mcp/onlyoffice#92 with 5 hypotheses, 7 tasks, and a proposed
flush_interval -1 + transport http { versions 1.1 } mitigation (not
applied yet to avoid masking root cause).
mw