fix(ci): resolve Codecov path mismatch causing unusable reports (#603)

Add fixes section to strip Docker container path prefix (/github/workspace/)
from coverage reports generated by Unity test runner, allowing Codecov to
correctly match source files in the repository.

Signed-off-by: JasonXuDeveloper - 傑 <jason@xgamedev.net>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: JasonXuDeveloper

codecov.yml

@@ -12,6 +12,12 @@ coverage:
         target: auto
         threshold: 1%
 
+# Fix Docker container path prefix in coverage reports
+# Unity test runner generates paths like /github/workspace/UnityProject/...
+# This strips the /github/workspace/ prefix to match repository structure
+fixes:
+  - "/github/workspace/::"
+
 # Flag management for per-package coverage tracking
 flag_management:
   default_rules: