Added an isolated apps/factory/worker-image Python package on the Factory campaign prototype branch.
Copied the current histo preprocessing and viseg anatomy runner behavior without changing batching, identifiers, publication, or inference semantics.
Added JSON-file CLI payload handling with params and inputs, a Pixi CUDA environment and lock, and a container build.
Verified formatting, lint, type checking, lock generation, wheel creation, entrypoint metadata, and runner AST equivalence.
Lessons Learned: Pitfalls
The current runner code mixes execution behavior with extensive rationale. Moving it while following the repository zero-comment rule required a syntax-preserving copy rather than a direct file copy.
The worktree was shared with concurrent controller work. Scope checks were necessary to avoid treating sibling changes as part of this task.
Lessons Learned: Improvements
A documented Factory worker payload and image contract would make future controller and runner splits faster.
Record that worker payloads use top-level params and inputs, while case selection and job grouping remain controller responsibilities.
