fix: OIDC multi-audience support and Swagger UI fix

- Accept tokens from multiple clients (core-api, tatlock-ui, tatlock)
- Fixed main.py to use oidc_audiences[0] for Swagger UI OAuth

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "core-api"
-version = "1.10.5"
+version = "1.10.6"
 description = "Core Code API - Infrastructure management and tools API"
 readme = "README.md"
 requires-python = ">=3.12"