feat: initial EcoArk HarmonyOS wheel pipeline skeleton

- wheel_pipeline.py: CLI entry point for repack/rebuild flow
- pipeline/detect.py: detect pure vs native extension wheels
- pipeline/repack.py: repack pure-Python wheels with harmonyos_arm64 tag
- pipeline/rebuild.py: native wheel rebuild entry (stub for OHOS NDK)
- pipeline/cli.py: argument parsing and orchestration
- Makefile: convenience targets (repack, rebuild, clean)
- README.md: documentation with usage and limitations
- examples/gen_test_wheels.py: test wheel generator
- output/: output directory for generated wheels

pipeline/detect.py

@@ -0,0 +1,43 @@
+import zipfile
+import os
+import re
+
+PURE_TAGS = {"py2", "py3", "py2.py3", "none", "any"}
+
+
+def detect_wheel_type(wheel_path: str) -> dict:
+    if not os.path.isfile(wheel_path):
+        return {"error": f"File not found: {wheel_path}"}
+
+    if not wheel_path.endswith(".whl"):
+        return {"error": "Not a .whl file"}
+
+    basename = os.path.basename(wheel_path)
+    parts = basename.split("-")
+    platform_tag = parts[-1].replace(".whl", "") if len(parts) >= 4 else "unknown"
+    abi_tag = parts[-2] if len(parts) >= 4 else "unknown"
+
+    has_native = False
+    native_detail = ""
+
+    if platform_tag not in PURE_TAGS or abi_tag != "none":
+        has_native = True
+        native_detail = f"platform={platform_tag}, abi={abi_tag}"
+
+    if not has_native:
+        try:
+            with zipfile.ZipFile(wheel_path) as zf:
+                for name in zf.namelist():
+                    if name.endswith((".so", ".pyd", ".dll", ".dylib")):
+                        has_native = True
+                        native_detail = f"contains native extension: {name}"
+                        break
+        except zipfile.BadZipFile:
+            return {"error": "Corrupt or invalid zip file"}
+
+    return {
+        "wheel": basename,
+        "pure_python": not has_native,
+        "native": has_native,
+        "detail": native_detail or "tag=any/none, no native binaries found",
+    }