April 2026 (DragonOS): Implemented and delivered the /proc/[pid]/limits capability in the DragonOS procfs to expose per-process resource limits. The change introduces a LimitsFile that dynamically reads limits from the process control block, formats output to strictly match Linux 6.6 standards (column alignment and lowercase "unlimited"), and registers the limits node under pid in STATIC_ENTRIES. It includes tests that validate dynamic limit changes via setrlimit and ensures formatting correctness. A header whitespace fix was also applied to remove a trailing space to align with Linux expectations, improving test reliability. Impact: Enhances observability and capacity planning by providing accurate per-process resource limit data, reduces debugging and test fragility, and brings DragonOS procfs behavior in line with upstream Linux semantics.