feat: integrate DDMA eligibility into BullMQ queue with persistent session

- Route DDMA eligibility through InProcessQueue (concurrency=1) so it
  queues behind other selenium jobs instead of running concurrently
- New ddmaEligibilityProcessor: starts Python session, polls for OTP/
  completion via socket events, saves PDF and updates patient DB
- Frontend ddma-buton-modal now uses shared app socket + job:update
  pattern (drops private socket connection)
- SeleniumService: upgrade ddma_browser_manager with credential hash
  tracking, anti-detection options, and startup session clearing;
  upgrade DDMA worker with firstName/lastName support, PDF via
  printToPDF, force-logout on credential change; upgrade helpers with
  dual OTP strategy (app API + browser polling); add /clear-ddma-session
  endpoint; reduce fixed sleeps with smart WebDriverWait

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

apps/SeleniumService/agent.py

@@ -12,8 +12,21 @@ import os
 import time
 import helpers_ddma_eligibility as hddma
 
+# Import startup session-clear functions
+from ddma_browser_manager import clear_ddma_session_on_startup
+
 from dotenv import load_dotenv
-load_dotenv() 
+load_dotenv()
+
+# Clear DDMA session on startup so fresh login is required after PC restart.
+# Device trust tokens are preserved so OTP is still skipped after first login.
+print("=" * 50)
+print("SELENIUM AGENT STARTING - CLEARING DDMA SESSION")
+print("=" * 50)
+clear_ddma_session_on_startup()
+print("=" * 50)
+print("SESSION CLEAR COMPLETE")
+print("=" * 50)
 
 app = FastAPI()
 
@@ -264,6 +277,21 @@ async def session_status(sid: str):
     return s
 
 
+# ── Session management endpoints ─────────────────────────────────────────────
+
+@app.post("/clear-ddma-session")
+async def clear_ddma_session_endpoint():
+    """
+    Clears the DDMA browser session (cookies + cached credentials).
+    Call this when DDMA credentials are deleted or changed.
+    """
+    try:
+        clear_ddma_session_on_startup()
+        return {"status": "success", "message": "DDMA session cleared"}
+    except Exception as e:
+        return {"status": "error", "message": str(e)}
+
+
 # ✅ Health Check Endpoint
 @app.get("/")
 async def health_check():