feat(core): import progress & perf (#15197)

#### PR Dependency Tree


* **PR #15197** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added a new import pipeline with “plan then commit” batch handling for
Markdown, Notion HTML, Obsidian, and Bear backups.
* Enabled native import sessions with progress, cancellation, and
batch-by-batch committing (including assets, folders, icons, and tags).
  * Added web preflight limits for ZIP and multi-file imports.
* **Bug Fixes**
* Improved import error/warning reporting and continued processing when
some items fail.
* Strengthened snapshot-based file/directory picking to preserve paths.
* **Chores**
  * Updated project packaging/configuration for the new import workflow.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tools/utils/src/distribution.ts

@@ -6,7 +6,6 @@ export const PackageToDistribution = new Map<
 >([
   ['@affine/admin', 'admin'],
   ['@affine/web', 'web'],
-  ['@affine/media-capture-playground', 'web'],
   ['@affine/electron-renderer', 'desktop'],
   ['@affine/electron', 'desktop'],
   ['@affine/mobile', 'mobile'],

tools/utils/src/workspace.gen.ts

@@ -1325,11 +1325,6 @@ export const PackageList = [
       'tools/utils',
     ],
   },
-  {
-    location: 'packages/frontend/media-capture-playground',
-    name: '@affine/media-capture-playground',
-    workspaceDependencies: ['packages/frontend/native'],
-  },
   {
     location: 'packages/frontend/native',
     name: '@affine/native',
@@ -1549,7 +1544,6 @@ export type PackageName =
   | '@affine/core'
   | '@affine/electron-api'
   | '@affine/i18n'
-  | '@affine/media-capture-playground'
   | '@affine/native'
   | '@affine/routes'
   | '@affine/templates'