fix(claude-sm): allow stdin input for --print/-p flag

- Check for piped stdin before erroring on missing prompt
- Supports: echo 'prompt' | claude-smd -p

Author: jonathanpeterwu

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@stackmemoryai/stackmemory",
-  "version": "0.5.43",
+  "version": "0.5.44",
   "description": "Lossless memory runtime for AI coding tools - organizes context as a call stack instead of linear chat logs, with team collaboration and infinite retention",
   "engines": {
     "node": ">=20.0.0",

package.json

@@ -680,14 +680,17 @@ class ClaudeSM {
       i++;
     }
 
-    // Validate --print/-p requires a prompt argument
+    // Validate --print/-p requires a prompt argument (unless stdin is piped)
     const printIndex = claudeArgs.findIndex(
       (a) => a === '-p' || a === '--print'
     );
     if (printIndex !== -1) {
       const nextArg = claudeArgs[printIndex + 1];
-      // If no next arg, or next arg is a flag, error out
-      if (!nextArg || nextArg.startsWith('-')) {
+      const hasStdin = !process.stdin.isTTY; // stdin is piped
+      const hasPromptArg = nextArg && !nextArg.startsWith('-');
+
+      // Error only if no stdin AND no prompt argument
+      if (!hasStdin && !hasPromptArg) {
         console.error(
           chalk.red('Error: --print/-p requires a prompt argument.')
         );