cog

575454e5 - fix: restore legacy schema gen for cog train/predict/serve (skipLabels path)

fix: restore legacy schema gen for cog train/predict/serve (skipLabels path) The skipLabels optimization (8b1c141d) skipped the entire post-build phase including legacy schema generation. This broke cog train/predict/serve which need the schema for -i flag parsing and input validation. Move legacy schema gen above the skipLabels early return and add a minimal second Docker build that bundles only the schema file (no labels, pip freeze, or git info). Restore the sourceDir parameter on GenerateOpenAPISchema so ExcludeSource builds can volume-mount the project directory for Python introspection. Re-enable the train_basic and training_setup integration tests that were temporarily skipped.