[refactor] Add DDD refactor commits to git-blame-ignore-revs (#5591)

* [refactor] Add DDD refactor commits to git-blame-ignore-revs

Add recent domain-driven design refactor commits to .git-blame-ignore-revs
to improve git blame output by excluding large structural reorganizations.

Added commits:
- 6349ceee6 [refactor] Improve renderer domain organization (#5552)
- 4c8c4a1ad [refactor] Improve settings domain organization (#5550)
- ca312fd1e [refactor] Improve workflow domain organization (#5584)
- e3bb29ceb [refactor] Move thumbnail functionality to renderer/core domain (#5586)
- 27ab355f9 [refactor] Improve updates/notifications domain organization (#5590)

This allows git blame to focus on actual logic changes rather than file moves.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Fix: Use full 40-character SHAs in git-blame-ignore-revs

GitHub requires full commit SHAs to properly recognize and link to commits.
Shortened SHAs appear as invalid references in the GitHub UI.

---------

Co-authored-by: Claude <noreply@anthropic.com>

.git-blame-ignore-revs

@@ -7,3 +7,21 @@ c53f197de2a3e0fa66b16dedc65c131235c1c4b6
 
 # Reorganize renderer components into domain-driven folder structure
 c8a83a9caede7bdb5f8598c5492b07d08c339d49
+
+# Domain-driven design (DDD) refactors - September 2025
+# These commits reorganized the codebase into domain-driven architecture
+
+# [refactor] Improve renderer domain organization (#5552)
+6349ceee6c0a57fc7992e85635def9b6e22eaeb2
+
+# [refactor] Improve settings domain organization (#5550)  
+4c8c4a1ad4f53354f700a33ea1b95262aeda2719
+
+# [refactor] Improve workflow domain organization (#5584)
+ca312fd1eab540cc4ddc0e3d244d38b3858574f0
+
+# [refactor] Move thumbnail functionality to renderer/core domain (#5586)
+e3bb29ceb8174b8bbca9e48ec7d42cd540f40efa
+
+# [refactor] Improve updates/notifications domain organization (#5590)
+27ab355f9c73415dc39f4d3f512b02308f847801