Add repo.json at the repo root so testers can drop the raw URL
into Dalamud's Custom Plugin Repositories list and pick Hellion
Chat up like any other Dalamud plugin. The file is generated from
the in-assembly HellionChat.json plus the extra fields a Dalamud
custom-repo entry needs:
- DownloadLinkInstall / Update / Testing point at the GitHub
release asset for v0.1.0 (latest.zip), so refreshing the
plugin list pulls the released ZIP rather than building from
source.
- IconUrl points at the raw icon.png in the repository so the
plugin list can render the Hellion logo even before the user
installs the plugin.
- CategoryTags, IsHide and IsTestingExclusive use sane defaults
for a single-track release.
README gains an Install section with the exact custom-repo URL,
the steps to add it in Dalamud and a note about disabling
upstream Chat 2 first so the layout migration runs clean.
