fix: AI claims/preauths keep all codes past 10; reuse CCA/DentalHub Chrome

- Claim form: AI claim/preauth prefill adds rows beyond the initial 10
  instead of dropping codes 11+
- CDT lookup: "D6010 #5, 9, 11, 12" expands to one line per tooth, and
  the chat graph rebuilds such lists from the message if the LLM drops items
- Eligibility: match an existing patient by name+DOB when the insurance ID
  changed (e.g. MassHealth → CCA) instead of creating a duplicate patient
- CCA PreAuth: services grid scrolls to reach rows 11+
- CCA and Tufts SCO PreAuth: tentative service date = today + 3 days
- CCA (eligibility/claim/preauth) and DentalHub (claim/preauth): keep Chrome
  open, blank and minimized, after a job so the next job reuses it

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/SeleniumService/helpers_uniteddh_preauth.py

@@ -294,13 +294,14 @@ async def start_uniteddh_preauth_run(sid: str, data: dict, url: str):
         s["result"] = result
         s["message"] = "completed"
 
-        # Close browser window (session preserved in profile via UnitedSCO browser manager)
+        # Keep Chrome open (blank + minimized) so the next job reuses it — faster than
+        # starting a new browser. The browser manager recreates it if it was closed.
         try:
-            from unitedsco_browser_manager import get_browser_manager as _gbm
-            _gbm().quit_driver()
-            print("[UnitedDH PreAuth] Browser closed - session preserved in profile")
-        except Exception as close_err:
-            print(f"[UnitedDH PreAuth] Could not close browser (non-fatal): {close_err}")
+            bot.driver.get("about:blank")
+            bot.driver.minimize_window()
+            print("[UnitedDH PreAuth] Browser kept open (minimized)")
+        except Exception as hide_err:
+            print(f"[UnitedDH PreAuth] Could not minimize browser (non-fatal): {hide_err}")
 
         asyncio.create_task(_remove_session_later(sid, 60))
         return result