Adds AnyBlock v2 (Preview) to space and object exports, with a distinct blue icon and a notice that preview exports should not be used for backups. AnyBlock v1/v2 now explain the “Include files data” option; Markdown keeps “Include files”.

Export reports show exported and missing-object/file counts, errors first, and separate collapsed Warnings and Export notes groups. Reports remain available for successful exports, with Copy report and Open export folder actions. Issue objects and their types are resolved with ObjectSearch ID filters, including archived objects; original diagnostics remain in the copied report.

Validation: typecheck, 19 targeted export tests, lint on changed TypeScript files, SCSS compilation, and translation JSON validation passed. Lint reports one existing unused MouseEvent import in the search popup. Storybook browser checks covered disclosure groups, successful-report access, and the folder action.

Dependency: Heart export preview and diagnostics is merged, but the currently pinned middleware version (0.51.0-rc7) does not contain export_report.proto. This draft requires a compatible middleware version before merging. Local validation used the rebuilt anytype-heart_exporter checkout.