Fix LiteLLM API key source and auth header

- Load API key from durable file /root/.abiba-workspace/secrets/litellm-key.txt (works in cron)
- Fix http_get to use Bearer token instead of Basic Auth for API endpoint check
- All 6 LiteLLM checks now pass (was 5/6)

scripts/daily-infra-report.py

@@ -29,7 +29,13 @@ LITELLM_PUBLIC = "https://litellm.sysloggh.net"
 LITELLM_BACKEND = "192.168.68.116"
 AUTH_HOST = "192.168.68.11"
 
-SYNTHETIC_API_KEY = "sk-U_ydi3B-wfGU-_xESkoU1Q"
+# Load LiteLLM API key from file (durable, works in cron)
+LITELLM_KEY_FILE = "/root/.abiba-workspace/secrets/litellm-key.txt"
+try:
+    with open(LITELLM_KEY_FILE) as f:
+        SYNTHETIC_API_KEY = f.read().strip()
+except:
+    SYNTHETIC_API_KEY = "sk-U_ydi3B-wfGU-_xESkoU1Q"
 
 NOW = datetime.datetime.now()
 DATE_STR = NOW.strftime("%Y-%m-%d")
@@ -68,7 +74,7 @@ def http_get(url, auth=None, timeout=10):
         cmd = f'curl -sfk --connect-timeout {timeout} -o /dev/null -w "%{{http_code}}" "{url}"'
         if auth:
             cmd = cmd.replace('"', '\\"')
-            cmd = f'curl -sfk --connect-timeout {timeout} -u "{auth}" -o /dev/null -w "%{{http_code}}" "{url}"'
+            cmd = f'curl -sfk --connect-timeout {timeout} -H "Authorization: Bearer {auth}" -o /dev/null -w "%{{http_code}}" "{url}"'
         r = subprocess.run(cmd, shell=True, capture_output=True, text=True, timeout=timeout+2)
         return r.stdout.strip() or "000"
     except: