Point the Gitea links at the renamed repository

The canonical repo is now `awkawb/invoiceninja-sdk`; the old
`awkawb/invoiceninja` path only resolves through a redirect.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

GOALS.md

@@ -121,7 +121,7 @@ releases. `CHANGELOG.md` records them, and breaking changes should be
 legible there rather than discovered at compile time.
 
 **Gitea is the source of truth; GitHub is a one-way mirror.** The canonical
-repository is `gitea.awkawb.cloud/awkawb/invoiceninja`. A Gitea push mirror
+repository is `gitea.awkawb.cloud/awkawb/invoiceninja-sdk`. A Gitea push mirror
 copies every commit to <https://github.com/awkawb1/invoiceninja-sdk>, which
 is what `Cargo.toml` points at. Nothing should be written to the GitHub
 copy: the next sync overwrites it, so a merged pull request there would

README.md

@@ -9,7 +9,7 @@ Requires Rust 1.88 or newer.
 > [`GOALS.md`](GOALS.md) covers what the crate is for and what it is not.
 
 > **Development happens on
-> [Gitea](https://gitea.awkawb.cloud/awkawb/invoiceninja); the
+> [Gitea](https://gitea.awkawb.cloud/awkawb/invoiceninja-sdk); the
 > [GitHub copy](https://github.com/awkawb1/invoiceninja-sdk) is a read-only
 > mirror.** Anything pushed to GitHub is overwritten by the next sync, so
 > please open issues and pull requests on Gitea.