[NFC] Fix example build and identifier issue

[Kyle-Ye]

No description provided.

[augmentcode]

🤖 Augment PR Summary

Summary: Fixes the Example app’s SwiftUI build by importing the system Observation module.
Also: Renames internal identifier strings (DisplayLink queue label + CGImage retain-key) to org.OpenSwiftUIProject.OpenSwiftUI.* to avoid using com.apple namespaces.

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[augmentcode]

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 27.42%. Comparing base (6029301) to head (e4bcfac).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ources/OpenSwiftUICore/View/Image/NamedImage.swift	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #809       +/-   ##
===========================================
+ Coverage   13.98%   27.42%   +13.43%     
===========================================
  Files         624      660       +36     
  Lines       37809    42376     +4567     
===========================================
+ Hits         5288    11620     +6332     
+ Misses      32521    30756     -1765     

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