fix: missing sqlalchemy text import and _ssh_exec in ElephantAlpha

services/elephant_alpha_autonomous_engine.py

@@ -26,6 +26,7 @@ from datetime import datetime, timedelta
 from enum import Enum
 from typing import Dict, List, Any, Optional
 
+from sqlalchemy import text
 from services.logger_manager import SystemLogger
 from services.elephant_alpha_orchestrator import elephant_orchestrator, StrategicDecision
 from database.manager import get_session
@@ -662,7 +663,32 @@ class ElephantAlphaAutonomousEngine:
             except Exception as e:
                 self._log.error("Telegram escalation failed (non-blocking): %s", e)
 
-    # ---- Helpers ----
+    # ---- Resource Optimization ----
+    def _ssh_exec(self, cmd: str, timeout: int = 60) -> tuple:
+        """Execute command via SSH jump host."""
+        import subprocess
+        import shlex
+        
+        full_cmd = [
+            "ssh",
+            "-p", str(SSH_PORT),
+            "-i", SSH_KEY_PATH,
+            "-o", "StrictHostKeyChecking=no",
+            "-o", "ConnectTimeout=10",
+            f"{SSH_JUMP_USER}@{SSH_JUMP_HOST}",
+            cmd
+        ]
+        try:
+            res = subprocess.run(
+                full_cmd,
+                capture_output=True,
+                text=True,
+                timeout=timeout
+            )
+            return res.returncode, res.stdout, res.stderr
+        except Exception as e:
+            return -1, "", str(e)
+
     def _is_circuit_open(self) -> bool:
         cb = self._circuit_breaker_state
         if cb["failures"] >= self._cb_threshold: