* chore: release blog for Hextra v0.12
* Add v0.12 blog translations and proofreading updates
* Merge main into plan-release-v0.12.0 and update build script versions
* Update build environment versions in netlify.toml to HUGO 0.156.0, GO 1.26.0, and NODE 24.13.1
* chore: update banner messages in multiple languages to reflect the release of Hextra **v0.12** in hugo.yaml
* docs(blog): align v0.12 tabs example with image (Photos/Music/Videos)
* docs(blog): fix page context menu wording (dropdown, not right-click)
* docs(hugo): update version link from v0.9 to v0.11 in menu
* chore(docs): rename `exampleSite` to `docs` and create `examples`
* chore(build): update build script to support new version format and source directories; add v0.10 to documentation menu