Rewrite retired Static Studio origins during export

[patrickposner]

Summary

• detect current and retired Static Studio WordPress aliases embedded in exported pages
• treat recognized aliases as local so JSON-LD, image attributes, resource hints, and crawl targets are rewritten to the public destination
• fetch assets referenced through retired aliases from the active runtime while leaving non-Studio exports unchanged
• add regression coverage for the Speedzcasino hostname combination and a non-Studio guard

Testing

• composer test — 441 tests, 4,873 assertions