fix(editor): edgeless can't slider with finger (#15091)

fix bug edgeless can't slider with finger 

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

* **New Features**
* Added mobile immersive edgeless mode with dynamic chrome auto-hide and
tap-gesture controls.
  * Added a mobile zoom ruler UI for edgeless.
* **Bug Fixes**
* Improved iOS rendering/zoom by applying low-zoom survival behavior,
gesture-aware refresh deferral, and effective-DPR canvas scaling.
* Fixed iOS webview zoom/bounce and process-termination reload behavior.
  * Improved placeholder styling with theme-aware colors.
* **Chores**
  * Updated local ignore rules and iOS app build/version configuration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: DarkSky <darksky2048@gmail.com>

.gitignore

@@ -6,6 +6,7 @@
 !.yarn/releases
 !.yarn/sdks
 .yarn/versions
+.corepack-bin
 
 # compiled output
 *dist
@@ -50,6 +51,7 @@ tsconfig.tsbuildinfo
 .context
 /*.md
 .codex
+.cursor
 
 # System Files
 .DS_Store
@@ -94,3 +96,9 @@ af.cmd
 
 # playwright
 storageState.json
+/.understand-anything
+
+# local test/browser artifacts
+/.playwright-browsers/
+**/.vitest-attachments/
+/blocksuite/framework/std/src/__tests__/gfx/__screenshots__/