Moves the Dow Jones / MarketWatch / WSJ profile JSONs (4), check apps
(22), and CLAUDE_DOW_JONES.md into backend/_archive/dow_jones/. All
moves use git mv so history follows. Adds a restore-instructions
README. No loader changes needed — the archive lives outside the
scanned directories.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>