Publish Chimera GFX source

docs/retroarch/phase-1.0cl-native-sdk-configure-progress-and-cleanup-gate.md

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+# Phase 1.0CL: native-SDK configure progress and cleanup gate
+
+Status: `CK_CONSUMED_96_SUCCESSFUL_CHECKS_EXACT_NATIVE_CLEANUP_ALLOWED`
+
+Date: 2026-07-30
+
+CK completed SDK staging, full-tree verification, extraction, SDL worktree and
+patch verification. Native CMake then completed 96 checks and reached the
+`strcasestr` probe before its 600-second deadline. Compiler and sysroot paths
+were both native and successful; this is bounded progress, not a toolchain
+failure.
+
+CL permits one cleanup of only the exact native root, removing its registered
+SDL worktree first. No retry, timeout change, build, export or device action is
+authorized under CL.