Add extracted source directory and README navigation

extracted-source/node_modules/@anthropic-ai/sandbox-runtime/dist/utils/platform.js

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+/**
+ * Platform detection utilities
+ */
+import * as fs from 'fs';
+/**
+ * Get the WSL version (1 or 2+) if running in WSL.
+ * Returns undefined if not running in WSL.
+ */
+export function getWslVersion() {
+    if (process.platform !== 'linux') {
+        return undefined;
+    }
+    try {
+        const procVersion = fs.readFileSync('/proc/version', { encoding: 'utf8' });
+        // Check for explicit WSL version markers (e.g., "WSL2", "WSL3", etc.)
+        const wslVersionMatch = procVersion.match(/WSL(\d+)/i);
+        if (wslVersionMatch && wslVersionMatch[1]) {
+            return wslVersionMatch[1];
+        }
+        // If no explicit WSL version but contains Microsoft, assume WSL1
+        // This handles the original WSL1 format: "4.4.0-19041-Microsoft"
+        if (procVersion.toLowerCase().includes('microsoft')) {
+            return '1';
+        }
+        return undefined;
+    }
+    catch {
+        return undefined;
+    }
+}
+/**
+ * Detect the current platform.
+ * Note: All Linux including WSL returns 'linux'. Use getWslVersion() to detect WSL1 (unsupported).
+ */
+export function getPlatform() {
+    switch (process.platform) {
+        case 'darwin':
+            return 'macos';
+        case 'linux':
+            // WSL2+ is treated as Linux (same sandboxing)
+            // WSL1 is also returned as 'linux' but will fail isSupportedPlatform check
+            return 'linux';
+        case 'win32':
+            return 'windows';
+        default:
+            return 'unknown';
+    }
+}
+//# sourceMappingURL=platform.js.map