jubnl 6c87bf2f7a feat(help): serve the in-app wiki from disk instead of fetching GitHub ...

The /help pages fetched their markdown from raw.githubusercontent.com at
runtime, so a self-hosted install was served docs from main rather than the
version it was actually running, and help was unusable without network access.
The wiki/ directory was in the repo the whole time; the bundled-snapshot
fallback the code reached for was gitignored and never populated by any build
step, so it was dead code.

Read wiki/ straight from disk instead. server/{src,dist}/services both sit
three levels under the repo root, so a single __dirname anchor resolves in dev,
a built source install, vitest and Docker with no copy or build step. GitHub is
kept strictly as a fallback for when the directory cannot be resolved, decided
once at load by probing for _Sidebar.md: a page missing from a present wiki is
a genuine 404, since falling back per-file would reintroduce the version skew
this removes.

Ship wiki/ in the image: .dockerignore excluded it outright, so the COPY alone
would have produced an image with no wiki, and the GitHub fallback would have
masked that at runtime. Add a real path-containment check on assets now that
the path becomes a filesystem read rather than a URL, and document
TREK_WIKI_DIR as an off-by-default escape hatch across the deployment configs.

2026-07-13 23:11:59 +02:00

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