Update Gitea URLs after server move

docs/PORTING.md

@@ -25,13 +25,13 @@ must not silently change existing saved Ages.
 
 Gitea is the source of truth for project status:
 
-- [Issues](https://gitea.tail180fb1.ts.net/dnorberg/rivencraft/issues) contain
+- [Issues](https://truenas-scale.tail180fb1.ts.net:8443/dnorberg/rivencraft/issues) contain
   scoped implementation tasks, bugs, acceptance criteria, and technical
   discussion.
-- [Milestones](https://gitea.tail180fb1.ts.net/dnorberg/rivencraft/milestones)
+- [Milestones](https://truenas-scale.tail180fb1.ts.net:8443/dnorberg/rivencraft/milestones)
   group issues into the porting phases below and show their live completion
   state.
-- [Releases](https://gitea.tail180fb1.ts.net/dnorberg/rivencraft/releases)
+- [Releases](https://truenas-scale.tail180fb1.ts.net:8443/dnorberg/rivencraft/releases)
   contain user-facing changelogs for shipped versions.
 
 New work should have an issue before implementation begins. Commits should
@@ -48,10 +48,10 @@ acceptance issue and all required implementation issues are complete.
 3. **Ages** — persistent generated dimensions, deterministic traits,
    lifecycle management, data-pack integration, and optional destination
    renderer compatibility. **Complete.** See
-   [Milestone 3](https://gitea.tail180fb1.ts.net/dnorberg/rivencraft/milestone/8).
+   [Milestone 3](https://truenas-scale.tail180fb1.ts.net:8443/dnorberg/rivencraft/milestone/8).
 4. **Writing system** — pages, notebooks, desks, book assembly, and the baseline
    Ink Mixer for Link Panels. Symbol effects were deferred to Milestone 5.
-   **Complete.** See [Milestone 4](https://gitea.tail180fb1.ts.net/dnorberg/rivencraft/milestone/9)
+   **Complete.** See [Milestone 4](https://truenas-scale.tail180fb1.ts.net:8443/dnorberg/rivencraft/milestone/9)
    and [writing-system data and migration](WRITING_DATA.md).
 5. **Age grammar** — translate supported symbol combinations into modern biome,
    noise, dimension-type, and world-generation configuration, with optional