release: Windows matrix runtime names the runtime targets, not the DLLs the cell zip ships #8571

Found in evidence run 42221586283 (task=test, windows_x86_64 and windows_arm64) for #8467. //deploy/release:release_host_cell_test host_cell_ships_exactly_its_members fails on both Windows cells: the archive lists the CRT DLLs, while the cell runtime lists msvc_vcruntime and windows_ucrt. #8467 does not change this.

Where

• deploy/release/matrix.bzl:24 declares runtime as the labels //cc/toolchains:msvc_vcruntime and //cc/toolchains:windows_ucrt.
• deploy/release/matrix.bzl:67 writes Label(runtime).name into the matrix JSON, which gives target names, not file names.
• deploy/release/src/cell.rs:119 checks those names as top-level archive members.
• deploy/release/host_cell_test.rs:29 compares them with the archive listing.

Fix

Write the basenames of the DLLs that each runtime target provides into the matrix JSON runtime field. Either keep a fixed map next to _cell in matrix.bzl, or get the names from the <cell>_inventory_runtimes output. Leave the label list as the build input. Update deploy/release/matrix_tests.bzl (matrix_unit) and the cell.rs parse tests to expect the DLL names. Check that release_cell.sh and the launcher pin parser (cli/adopt/src/launcher.rs) still accept the new names. Show it with evidence task=test scope=//deploy/release:release_host_cell_test flags=--config=dx_release on windows_x86_64 and windows_arm64.