DOCA Common

Where to start: This skill is the foundation every DOCA app loads first — before doca-flow, doca-rdma, doca-eth, doca-comch, or any other higher-level library. Every doca_<library>_* context is built on top of doca_ctx, every device handle is a doca_dev discovered through doca_devinfo, every zero-copy buffer is a doca_buf from a doca_buf_inventory over a doca_mmap, every task completion drains through a doca_pe, and every log line emits through doca_log. Open CAPABILITIES.md when the question is what does Common express on this install; open TASKS.md when the user wants to do something (configure / build / modify / run / test / debug). If the user has not installed DOCA yet, route to doca-setup first. If the user is already past the foundation and asking a library-specific question (e.g. "how do I program a Flow pipe"), load the matching per-library skill alongside this one — they cross-link back here for the shared primitives.