Till Wegmueller 81f00a0624 Add caching headers, admin routes, and configurable cache max-age support ... - Introduced caching headers (`Cache-Control`, `ETag`, `Last-Modified`) for file responses to improve client-side caching. - Added HTTP admin routes for health check and authentication validation. - Made `cache_max_age` configurable via server configuration with a default of 3600 seconds. - Enhanced file handler with metadata-based `Last-Modified` computation. - Updated integration tests to cover new functionality and ensure correctness.		2025-12-09 20:23:00 +01:00
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integration_tests.rs	Add caching headers, admin routes, and configurable cache max-age support	2025-12-09 20:23:00 +01:00