Cumulative PR layer #1476. Integrates the reviewed authorization foundation, provider-neutral verification backend, loopback fixture repair, public dependency-source normalization, and the advisory-free Mesh revision.
Neighbor disclosure: bounded audit capacity remains in #3564; lifecycle and canonical admission remain in #4772; protected and status consumers remain in the later cumulative layers.
Signed-off-by: Cea Stapleton Cordasco <261786559+cea@users.noreply.github.com>