## Summary
The side note in #855 reports that the **Issues → Question** contact
link points to a non-existing page. Confirmed, plus two more dead links
of the same class:
- `.github/ISSUE_TEMPLATE/config.yml` — "Questions & Discussions" points
at `github.com/headroom-sdk/headroom/discussions` (the `headroom-sdk`
org 404s); now points at this repo's Discussions (live, Discussions are
enabled here).
- `.github/ISSUE_TEMPLATE/config.yml` — "Documentation" points at
`headroom.dev/docs` (404); now points at the repo homepage docs site
`headroom-docs.vercel.app/docs` (200).
- `docs/content/docs/troubleshooting.mdx` — "File an issue at
github.com/headroom-sdk/headroom" same dead org; now points at this
repo.
`.github/FUNDING.yml` also references `headroom-sdk` but that's a
sponsorship target choice, so left untouched.
## Testing
Link targets verified by HTTP status: old URLs return 404, new URLs
return 200. Docs-only change, no code paths affected.
Fixes the side note in #855.
Co-authored-by: integration-check <integration@local>
Adds TESTING-copilot-subscription.md (per-OS copy-paste test flows, what's
proven vs. needs verification, the host-native-vs-Docker discovery caveat) and a
GitHub issue template to collect structured test reports from Linux/Windows
users.
