按显式配置控制 Windows sccache

未配置 wrapper 时默认回退到直接 rustc

处理 sccache 探测失败与 wrapper 配置冲突

同步更新开发运维和排障文档

scripts/dev.mjs

@@ -591,23 +591,37 @@ function buildLocalRustProcessEnv(env, options = {}) {
     String(mergedEnv.RUSTC_WRAPPER ?? '').trim(),
     String(mergedEnv.CARGO_BUILD_RUSTC_WRAPPER ?? '').trim(),
   ].filter(Boolean);
-  const customWrapper = wrappers.find(
-    (wrapper) => !isSccacheRustcWrapper(wrapper),
-  );
-  if (customWrapper) {
-    mergedEnv.RUSTC_WRAPPER = customWrapper;
-    mergedEnv.CARGO_BUILD_RUSTC_WRAPPER = customWrapper;
+  const uniqueWrappers = [...new Set(wrappers)];
+  if (uniqueWrappers.length > 1) {
+    mergedEnv.RUSTC_WRAPPER = '';
+    mergedEnv.CARGO_BUILD_RUSTC_WRAPPER = '';
+    if (options.log !== false) {
+      console.warn(
+        '[dev:rust] RUSTC_WRAPPER 与 CARGO_BUILD_RUSTC_WRAPPER 配置冲突，回退到直接 rustc。',
+      );
+    }
     return mergedEnv;
   }
 
-  const rustcWrapperBypass = resolveLocalDevRustcWrapperBypass(options);
-  mergedEnv.RUSTC_WRAPPER = rustcWrapperBypass;
-  mergedEnv.CARGO_BUILD_RUSTC_WRAPPER = rustcWrapperBypass;
+  const configuredWrapper = uniqueWrappers[0] ?? '';
+  if (configuredWrapper && !isSccacheRustcWrapper(configuredWrapper)) {
+    mergedEnv.RUSTC_WRAPPER = configuredWrapper;
+    mergedEnv.CARGO_BUILD_RUSTC_WRAPPER = configuredWrapper;
+    return mergedEnv;
+  }
+
+  const rustcWrapper = configuredWrapper
+    ? resolveLocalDevRustcWrapperBypass(options)
+    : '';
+  mergedEnv.RUSTC_WRAPPER = rustcWrapper;
+  mergedEnv.CARGO_BUILD_RUSTC_WRAPPER = rustcWrapper;
   if (options.log !== false) {
     console.warn(
-      rustcWrapperBypass
+      rustcWrapper
         ? '[dev:rust] 本地 dev 构建启用 sccache wrapper。'
-        : '[dev:rust] 本地 dev 构建未找到可用 sccache，回退到直接 rustc。',
+        : configuredWrapper
+          ? '[dev:rust] sccache wrapper 探测失败，回退到直接 rustc。'
+          : '[dev:rust] 未显式配置 Rust wrapper，使用直接 rustc。',
     );
   }
   return mergedEnv;