Add 5 E2E tests for session execution mode: 2 unit tests for code
generation structure and 3 runtime tests that exercise the full
ComfyUI pipeline (oneshot, session single run, session multi-run).
Fix close() method signature in generated session code to use
"bool | None = None" instead of "bool = True" for consistency
with the actual generated output.
Add session-mode code generation that produces a reusable WorkflowSession class
instead of a simple oneshot script. The session mode generates code with an
in-class run/close lifecycle for warm ComfyUI reuse.
Also refactors render.py to extract shared code sections into common methods,
reducing duplication between oneshot and session renderers.
Adds WorkflowSessionRuntime with cleanup policies (per_run, session, manual)
and reset_every_n_runs support, plus 72 new tests covering session rendering,
runtime session, and session export pipeline.
Declare Python 3.12 support, replace the hidden pip bootstrap with explicit uv sync guidance, and remove prompt() from the Web UI save flow. Add focused contract coverage for the metadata and frontend defaults.
Move generated torch imports until after add_extra_model_paths runs so exported scripts do not trigger ComfyUI's early-torch warning during startup. Update export assertions and checked-in runtime generated fixtures to match the new main() ordering.
Peyton DeNiro