improve wildcard matching for permissions

packages/opencode/src/util/wildcard.ts

@@ -0,0 +1,13 @@
+export namespace Wildcard {
+  export function match(str: string, pattern: string) {
+    const regex = new RegExp(
+      "^" +
+        pattern
+          .replace(/[.+^${}()|[\]\\]/g, "\\$&") // escape special regex chars
+          .replace(/\*/g, ".*") // * becomes .*
+          .replace(/\?/g, ".") + // ? becomes .
+        "$",
+    )
+    return regex.test(str)
+  }
+}