refactor: extract normalizeUrls into src/kilocode/util/url.ts

Move Kilo-specific URL normalization logic out of shared upstream files
and into a mirror file under src/kilocode/, with kilocode_change markers
at each call site per the fork merge minimization convention.

packages/opencode/src/cli/cmd/tui/routes/session/permission.tsx

@@ -19,21 +19,10 @@ import { useDialog } from "../../ui/dialog"
 import { getScrollAcceleration } from "../../util/scroll"
 import { useTuiConfig } from "../../context/tui-config"
 import { ConfigProtection } from "@/kilocode/permission/config-paths" // kilocode_change
+import { normalizeUrls } from "@/kilocode/util/url" // kilocode_change
 
 type PermissionStage = "permission" | "always" | "reject"
 
-// Convert IDN/Unicode hostnames to punycode ASCII in any http/https URLs found
-// in the given string, to prevent homograph attacks in permission dialogs.
-function normalizeUrls(text: string) {
-  return text.replace(/https?:\/\/\S+/g, (match) => {
-    try {
-      return new URL(match).href
-    } catch {
-      return match
-    }
-  })
-}
-
 function normalizePath(input?: string) {
   if (!input) return ""
 

packages/opencode/src/kilocode/util/url.ts

@@ -0,0 +1,18 @@
+/**
+ * Normalize any http/https URLs in a string so that IDN/Unicode hostnames are
+ * converted to their punycode ASCII form, preventing homograph attacks in
+ * permission dialogs where visually identical Unicode characters (e.g. Cyrillic
+ * 'а' U+0430) could impersonate trusted domains (e.g. 'apitest.com').
+ *
+ * Example: "curl https://аpitest.com/status" (Cyrillic а)
+ *       → "curl https://xn--pitest-2nf.com/status"
+ */
+export function normalizeUrls(text: string) {
+  return text.replace(/https?:\/\/\S+/g, (match) => {
+    try {
+      return new URL(match).href
+    } catch {
+      return match
+    }
+  })
+}

packages/opencode/src/tool/bash.ts

@@ -20,6 +20,7 @@ import { Shell } from "@/shell/shell"
 import { BashArity } from "@/permission/arity"
 import * as Truncate from "./truncate"
 import { Plugin } from "@/plugin"
+import { normalizeUrls } from "@/kilocode/util/url" // kilocode_change
 import { Effect, Stream } from "effect"
 import { ChildProcess } from "effect/unstable/process"
 import { ChildProcessSpawner } from "effect/unstable/process/ChildProcessSpawner"
@@ -238,18 +239,6 @@ function preview(text: string) {
   return "...\n\n" + text.slice(-MAX_METADATA_LENGTH)
 }
 
-// Normalize any http/https URLs in a command string so that IDN/Unicode hostnames
-// are converted to their punycode ASCII form, preventing homograph attacks in
-// permission dialogs where "аpitest.com" (Cyrillic) looks identical to "apitest.com".
-function normalizeUrls(text: string) {
-  return text.replace(/https?:\/\/\S+/g, (match) => {
-    try {
-      return new URL(match).href
-    } catch {
-      return match
-    }
-  })
-}
 
 function tail(text: string, maxLines: number, maxBytes: number) {
   const lines = text.split("\n")

packages/opencode/src/tool/webfetch.ts

@@ -4,6 +4,7 @@ import * as Tool from "./tool"
 import TurndownService from "turndown"
 import DESCRIPTION from "./webfetch.txt"
 import { isImageAttachment } from "@/util/media"
+import { normalizeUrls } from "@/kilocode/util/url" // kilocode_change
 
 const MAX_RESPONSE_SIZE = 5 * 1024 * 1024 // 5MB
 const DEFAULT_TIMEOUT = 30 * 1000 // 30 seconds
@@ -34,16 +35,7 @@ export const WebFetchTool = Tool.define(
             throw new Error("URL must start with http:// or https://")
           }
 
-          // Normalize URL: convert IDN/Unicode hostnames to punycode ASCII to prevent
-          // homograph attacks where visually similar Unicode characters impersonate trusted domains.
-          // e.g. "аpitest.com" (Cyrillic а) → "xn--pitest-n5b.com"
-          const url = (() => {
-            try {
-              return new URL(params.url).href
-            } catch {
-              return params.url
-            }
-          })()
+          const url = normalizeUrls(params.url) // kilocode_change
 
           yield* ctx.ask({
             permission: "webfetch",