fix(hooks): keep silent hook paths silent (#2987)

* fix(hooks): keep silent hook paths silent

* fix(hooks): harden stream failure handling

* fix(hooks): settle interrupted input streams

* test(hooks): name stream input limits

* test(hooks): isolate PostToolUse dispatcher fixtures

scripts/lib/resolve-ecc-root.js

@@ -126,6 +126,16 @@ function resolveEccRoot(options = {}) {
   return claudeDir;
 }
 
+function normalizePluginRootForPlatform(rootDir, platform = process.platform) {
+  if (platform !== 'win32' || typeof rootDir !== 'string') return rootDir;
+
+  const match = rootDir.match(/^\/([a-zA-Z])(?:\/(.*))?$/);
+  if (!match) return rootDir;
+
+  const [, driveLetter, rest = ''] = match;
+  return `${driveLetter.toUpperCase()}:/${rest}`;
+}
+
 /**
  * Compact inline locator for embedding in hooks.json and command .md code blocks.
  *
@@ -151,5 +161,6 @@ const INLINE_RESOLVE = `(function(){var p=require('path'),f=require('fs'),o=requ
 
 module.exports = {
   resolveEccRoot,
+  normalizePluginRootForPlatform,
   INLINE_RESOLVE,
 };