Make profile directory changes safe for in-flight files #843

Parent issue: #801

Objective

Ensure profile directory changes do not orphan, misroute, or lose files already accepted under an earlier profile version.

Scope

• Resolve processed and failed directories from the file's recorded profile version.
• Update in-progress recovery to use historical profile-version directory information.
• Ensure old in-progress files remain discoverable after a directory change.
• Define and implement the retention/cleanup behavior for old directories.
• Add tests for old, current, processed, failed, and recovered files.

Dependencies

• Depends on Implement immutable file profile versions #839.
• Depends on Capture profile version when accepting a file #840.
• Depends on Process files using their recorded profile version #841.
• Depends on Support historical profile lookup and archive behavior #842.

Acceptance criteria

• Existing files continue using the directories from their recorded profile version.
• New files use the new active profile version directories.
• Recovery can locate files in directories belonging to historical versions.
• A directory update cannot silently move an accepted file to a newer profile's directory.
• Directory behavior is covered by integration tests.