test: 回退Docker context到26e6cb40完全一致——验证竞赛平台build

Dockerfile/qwen3_6_scripts/ex_engine/computility-run.yaml 全部
还原到26e6cb40的精确内容。删除所有26e6cb40不存在的新增文件
(prebuilt/*.so, wheels/*.whl, vendor_overrides/, 新增.cu/.sh等)。

目的：确认26e6cb40的文件内容在当前git状态下仍能通过竞赛平台build。
如果通过，说明问题在新增文件中；如果不通过，说明问题在git仓库层面。

ex_engine/build_unified_bridge.sh

@@ -1,119 +0,0 @@
-#!/usr/bin/env bash
-# build_unified_bridge.sh — Compile ix_unified_bridge.so
-# Strategy: try torch.utils.cpp_extension.load() first (proven on BI-V100),
-# fall back to manual clang++ if torch extension not available.
-set -eo pipefail
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-SRC="$SCRIPT_DIR/csrc/ilu/ix_unified_bridge.cpp"
-BUILD_DIR="$SCRIPT_DIR/build"
-mkdir -p "$BUILD_DIR"
-
-if [ ! -f "$SRC" ]; then
-    echo "[build_bridge] ERROR: $SRC not found"
-    exit 1
-fi
-
-PYTHON=${PYTHON:-python3}
-
-# Method 1: torch.utils.cpp_extension.load() — same method that works for moe_topk, _moe_C, gdn
-echo "[build_bridge] Trying torch.utils.cpp_extension.load()..."
-$PYTHON << PYEOF
-import os, sys, glob
-
-src = "$SRC"
-build_dir = "$BUILD_DIR"
-
-try:
-    from torch.utils.cpp_extension import load
-    
-    extra_include = ["$SCRIPT_DIR/csrc/ilu"]
-    extra_ldflags = []
-    
-    for p in ["/usr/local/corex/lib64/python3/dist-packages/ixformer",
-              "/usr/local/corex/lib64"]:
-        if os.path.isdir(p):
-            sos = glob.glob(os.path.join(p, "*.so"))
-            if sos:
-                extra_ldflags.append(f"-L{p}")
-                extra_ldflags.append(f"-Wl,-rpath,{p}")
-
-    # Use load() for compilation only. It may fail on import because
-    # ixformer::infer symbols need RTLD_GLOBAL preload at runtime.
-    # That's OK — we just need the .so file to exist.
-    try:
-        ext = load(
-            name="ix_unified_bridge",
-            sources=[src],
-            extra_include_paths=extra_include,
-            extra_ldflags=extra_ldflags,
-            verbose=True,
-            build_directory=build_dir,
-        )
-        funcs = [x for x in dir(ext) if not x.startswith('_')]
-        print(f"[build_bridge] SUCCESS via cpp_extension: {len(funcs)} functions: {funcs}")
-        sys.exit(0)
-    except ImportError as ie:
-        # Compilation succeeded but import failed (expected: ixformer symbols unresolved)
-        # Check if .so was actually produced
-        built = glob.glob(os.path.join(build_dir, "ix_unified_bridge*.so"))
-        if built:
-            print(f"[build_bridge] COMPILED OK: {built[0]}")
-            print(f"[build_bridge] Import deferred to runtime (ixformer preload needed): {ie}")
-            sys.exit(0)
-        else:
-            print(f"[build_bridge] No .so produced: {ie}")
-            sys.exit(1)
-
-except Exception as e:
-    # Check if .so exists from compilation before the exception
-    built = glob.glob(os.path.join(build_dir, "ix_unified_bridge*.so"))
-    if built:
-        print(f"[build_bridge] COMPILED OK (exception during import): {built[0]}")
-        sys.exit(0)
-    print(f"[build_bridge] cpp_extension failed: {e}")
-    sys.exit(1)
-PYEOF
-
-if [ $? -eq 0 ]; then
-    echo "[build_bridge] torch.utils.cpp_extension succeeded"
-    ls -la "$BUILD_DIR"/ix_unified_bridge*.so 2>/dev/null
-    exit 0
-fi
-
-# Method 2: Manual clang++ (fallback)
-echo "[build_bridge] Falling back to manual clang++..."
-PY_INC=$($PYTHON -c "import sysconfig; print(sysconfig.get_path('include'))")
-PY_SUFFIX=$($PYTHON -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")
-TORCH_ROOT=$($PYTHON -c "import torch; import os; print(os.path.dirname(torch.__file__))")
-TORCH_INC="${TORCH_ROOT}/include"
-TORCH_INC2="${TORCH_ROOT}/include/torch/csrc/api/include"
-TORCH_LIB="${TORCH_ROOT}/lib"
-
-CXX=""
-for _CXX in /usr/local/corex/bin/clang++ g++; do
-    [ -x "$_CXX" ] && CXX="$_CXX" && break
-done
-
-OUT="${BUILD_DIR}/ix_unified_bridge${PY_SUFFIX}"
-
-$CXX -shared -fPIC -O2 -std=c++17 \
-    -I"$SCRIPT_DIR/csrc/ilu" \
-    -I"$PY_INC" \
-    -I"$TORCH_INC" \
-    -I"$TORCH_INC2" \
-    -L"$TORCH_LIB" \
-    -ltorch -ltorch_cpu -ltorch_python -lc10 \
-    -Wl,--no-as-needed,-rpath,"$TORCH_LIB" \
-    -Wl,--unresolved-symbols=ignore-in-shared-libs \
-    -D_GLIBCXX_USE_CXX11_ABI=0 \
-    -DTORCH_EXTENSION_NAME=ix_unified_bridge \
-    "$SRC" \
-    -o "$OUT" 2>&1
-
-if [ -f "$OUT" ]; then
-    echo "[build_bridge] SUCCESS via manual clang: $OUT ($(du -h "$OUT" | cut -f1))"
-else
-    echo "[build_bridge] FAILED"
-    exit 1
-fi