fix(agent): default endpoint uses www to avoid 307 redirect on POST

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: AgentMulder404

agent/config.py

@@ -143,7 +143,7 @@ def _load_config_file() -> None:
 
 # ── API Configuration ─────────────────────────────────────────────────────────
 
-API_ENDPOINT = os.getenv("ALUMINATAI_API_ENDPOINT", "https://aluminatiai.com/v1/metrics/ingest")
+API_ENDPOINT = os.getenv("ALUMINATAI_API_ENDPOINT", "https://www.aluminatiai.com/v1/metrics/ingest")
 API_KEY = os.getenv("ALUMINATAI_API_KEY", "")
 
 # ── Upload Configuration ──────────────────────────────────────────────────────