This commit fixes validation reporting false unresolved-reference errors for Markdown links that are successfully resolved by autorefs. Validation now runs after pages render, so it uses the autorefs results from the current build state and emits one complete issue report for that state.
**Validation implementation summary:**
- Page rendering now returns the identifiers that autorefs resolved, alongside rendered output.
- Validation combines those resolutions with the source-page references and anchors; a reference resolved by autorefs is no longer reported as unresolved.
- The workflow tracks a generation for page content and navigation, so it waits for matching render results from every page before creating issues. This prevents validation from using stale render data or printing duplicate reports during incremental updates.
- Reference collection now follows the configured documentation directory, and tests cover reporting after rendering and a subsequent clean rebuild.
Signed-off-by: Timothée Mazzucotelli <dev@pawamoy.fr>
Timothée Mazzucotelli