fix(shell): prioritize user npm binaries

Interactive shells could resolve bundled or system CLIs before user-installed npm binaries.

Move existing user npm global directories to the front of PATH while preserving all other entries.

server/modules/websocket/services/shell-websocket.service.ts

@@ -171,6 +171,62 @@ function buildShellCommand(
   return command;
 }
 
+function readEnvValue(env: NodeJS.ProcessEnv, key: string): string | undefined {
+  const resolvedKey = Object.keys(env).find((envKey) => envKey.toLowerCase() === key.toLowerCase());
+  return resolvedKey ? env[resolvedKey] : undefined;
+}
+
+function getPathEnvKey(env: NodeJS.ProcessEnv): string {
+  return Object.keys(env).find((key) => key.toLowerCase() === 'path') || 'PATH';
+}
+
+function prioritizeUserNpmGlobalBin(env: NodeJS.ProcessEnv): { key: string; value: string | undefined } {
+  const pathKey = getPathEnvKey(env);
+  const currentPath = env[pathKey];
+  if (!currentPath) {
+    return { key: pathKey, value: currentPath };
+  }
+
+  const delimiter = path.delimiter;
+  const pathEntries = currentPath.split(delimiter).filter(Boolean);
+  const npmPrefix = readEnvValue(env, 'npm_config_prefix');
+  const appData = readEnvValue(env, 'APPDATA');
+  const candidates = [
+    npmPrefix || '',
+    npmPrefix ? path.join(npmPrefix, 'bin') : '',
+    appData ? path.join(appData, 'npm') : '',
+    path.join(os.homedir(), 'AppData', 'Roaming', 'npm'),
+    path.join(os.homedir(), '.npm-global', 'bin'),
+  ].filter(Boolean);
+
+  const normalizedPathEntries = pathEntries.map((entry) => os.platform() === 'win32' ? entry.toLowerCase() : entry);
+  const preferredEntries = candidates.filter((candidate, index) => {
+    const normalizedCandidate = os.platform() === 'win32' ? candidate.toLowerCase() : candidate;
+    return (
+      candidates.indexOf(candidate) === index &&
+      normalizedPathEntries.includes(normalizedCandidate)
+    );
+  });
+
+  if (preferredEntries.length === 0) {
+    return { key: pathKey, value: currentPath };
+  }
+
+  const normalizedPreferredEntries = preferredEntries.map((entry) =>
+    os.platform() === 'win32' ? entry.toLowerCase() : entry
+  );
+
+  const value = [
+    ...preferredEntries,
+    ...pathEntries.filter((entry) => {
+      const normalizedEntry = os.platform() === 'win32' ? entry.toLowerCase() : entry;
+      return !normalizedPreferredEntries.includes(normalizedEntry);
+    }),
+  ].join(delimiter);
+
+  return { key: pathKey, value };
+}
+
 /**
  * Handles websocket connections used by the standalone shell terminal UI.
  */
@@ -284,6 +340,7 @@ export function handleShellConnection(
           os.platform() === 'win32' ? ['-Command', shellCommand] : ['-c', shellCommand];
         const termCols = readNumber(data.cols, 80);
         const termRows = readNumber(data.rows, 24);
+        const prioritizedPath = prioritizeUserNpmGlobalBin(process.env);
 
         shellProcess = pty.spawn(shell, shellArgs, {
           name: 'xterm-256color',
@@ -292,6 +349,7 @@ export function handleShellConnection(
           cwd: resolvedProjectPath,
           env: {
             ...process.env,
+            [prioritizedPath.key]: prioritizedPath.value,
             TERM: 'xterm-256color',
             COLORTERM: 'truecolor',
             FORCE_COLOR: '3',