Baseline: db077161e43484e4cb0f2270374ee33d05f3690d

Cherry picks:

   + 65ecccb87ae8dfda0ef1cd064f3a441746072abd:
     Release 10.0.0-pre.20260608.1 (2026-06-16)
   + abca86808bb612026ee6d3831958af995966515f:
     Release 10.0.0-pre.20260608.1 (2026-06-16)

Important changes:

  - The new `refines_constraint_value` attribute on
    `constraint_setting` can be used to indicate that any non-default
    value for that setting specified on a `platform` requires the
    refined value to also be specified.
  - Bazel's serialization system now has a new wire encoding that
    supports
    preserving how values are serialized across Bazel versions.

This release contains contributions from many people at Google, as well as Benjamin Peterson, dependabot[bot], Fabian Meumertzheim, Fredrik Medley, Jean-Baptiste Bronisz, JonathanPerry651, Keith Smiley, vadim.