fix(config): harden bootstrap logic and add email E2E test

Harden bootstrap_db_config to prioritize .env settings for core infrastructure (DB/SMTP) and only use DB values if placeholders are detected or values have explicitly changed. Added test_e2e_email_send.py for functional SMTP verification.

tests/e2e/test_e2e_email_send.py

@@ -0,0 +1,48 @@
+import requests
+import json
+import time
+
+# --- Configuration ---
+API_BASE = "https://dev-api.oneskyit.com/util/email"
+API_KEY = "PMM4n50teUCaOMMTN8qOJA" # Agent API Key
+ACCOUNT_ID = "_XY7DXtc9MY" # Standard Test Account
+
+def test_email_send_live():
+    """
+    End-to-End test for the email send utility.
+    Verifies that the API can successfully authenticate with SMTP and dispatch an email.
+    """
+    print("\n--- Testing Live Email Send via API ---")
+    print(f"Target: {API_BASE}/send")
+    
+    payload = {
+        "from_email": "noreply@oneskyit.com",
+        "from_name": "Aether API Monitor",
+        "to_email": "scott.idem+devtest@oneskyit.com",
+        "to_name": "Scott Idem (Dev Test)",
+        "subject": f"Aether E2E Test: {time.strftime('%Y-%m-%d %H:%M:%S')}",
+        "body_html": "<h3>Aether API Status Check</h3><p>This email confirms that the SMTP subsystem is operational and prioritizing correctly.</p><p>Environment: <b>Development</b></p>",
+        "body_text": "Aether API Status Check: SMTP subsystem is operational."
+    }
+    
+    headers = {
+        "Content-Type": "application/json",
+        "X-Aether-API-Key": API_KEY,
+        "x-account-id": ACCOUNT_ID
+    }
+    
+    start_time = time.time()
+    resp = requests.post(f"{API_BASE}/send", headers=headers, json=payload)
+    duration = time.time() - start_time
+    
+    print(f"Status Code: {resp.status_code}")
+    print(f"Response:    {resp.text}")
+    print(f"Duration:    {duration:.2f}s")
+    
+    if resp.status_code == 200:
+        print("[✅ PASS] Email successfully dispatched.")
+    else:
+        print("[❌ FAIL] Email failed to send. Check FastAPI logs for SMTP errors.")
+
+if __name__ == "__main__":
+    test_email_send_live()

tests/integration/test_int_email_live.py

@@ -1,29 +0,0 @@
-import sys
-import os
-import logging
-
-# Add current directory to path
-sys.path.append(os.getcwd())
-
-# Configure logging
-logging.basicConfig(level=logging.DEBUG)
-
-try:
-    from app.lib_email import send_email
-    print("Successfully imported send_email.")
-    
-    print("Running send_email in TEST mode...")
-    result = send_email(
-        from_email="test@example.com",
-        to_email="test@example.com",
-        subject="Test Email",
-        body_html="<p>Test</p>",
-        test=True
-    )
-    
-    print(f"Result: {result}")
-    
-except Exception as e:
-    print(f"Error during email test: {e}")
-    import traceback
-    traceback.print_exc()