Publish Chimera GFX source

docs/retroarch/phase-1.0cc-cmake-timeout-and-exact-output-cleanup-gate.md

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+# Phase 1.0CC: CMake timeout and exact output cleanup gate
+
+Status: `CB_CONSUMED_CONFIGURE_TIMEOUT_EXACT_DERIVED_OUTPUT_CLEANUP_ALLOWED`
+
+Date: 2026-07-30
+
+CB passed the commit, clean-source, worktree, both patch chains and all four
+patch-target hashes. CMake compiler identification then succeeded for C and
+C++, but configure exceeded 120 seconds before producing `CMakeCache.txt`.
+The archive is absent.
+
+CC permits one cleanup transaction over only the exact derived stage and
+partial build directory. The stage must be removed through its originating WSL
+Git worktree administration; the build directory may be recursively removed
+only after its absolute path is verified beneath the exact Phase-1.0BD root.
+No retry, source change, build or device action is authorized.