chore(healthchat): resolve the rebase onto upstream 26.10.3

.gitignore

@@ -18,22 +18,9 @@ DerivedData/
 .swiftpm
 .netrc
 
-# fastlane
-#
-# It is recommended to not store the screenshots in the git repo.
-# Instead, use fastlane to re-generate the screenshots whenever they are needed.
-# For more information about the recommended setup visit:
-# https://docs.fastlane.tools/best-practices/source-control/#source-control
-
-fastlane/report.xml
-fastlane/Preview.html
-fastlane/screenshots/**/*.png
-fastlane/test_output
-towncrier.toml.tmp
-version_changes.md
-
 build
 /vendor/
+*/xcshareddata/xcodecloud
 
 ## macOS Files
 .DS_Store
@@ -60,3 +47,6 @@ fastlane/README.md
 # Review working data (per-machine)
 .claude/review-context/
 .claude/review-log.jsonl
+
+# Local SDK development override
+matrix-rust-components-swift