BottleSpec.manifest is ManifestIndex | Manifest (pre/post _validate()).
Downstream code always runs post-validate so it needs Manifest, but
pyright flagged every .agent/.bottle access. The new loaded_manifest
property asserts isinstance and returns Manifest, giving pyright a
narrowed type without scattering type: ignore everywhere.
Also remove unused Manifest imports from test files and annotate the
_index() helper in test_manifest_agent_git_user.
didericis-claude
5becef0d0b