feat: save claim attachments to cloud storage and documents page

- Claim file uploads (chatbot or manual) now save to both the Cloud
  Storage patient folder and the Documents page via new
  POST /api/claims/upload-to-cloud endpoint
- MH submit flow now calls uploadAttachmentsToLocalFolder (same as
  DDMA/United/Tufts) so chatbot-attached X-rays are persisted
- Removed old /upload-attachments disk route and attachmentDiskStorage
  multer config; deleted uploads/patients/ folder
- uploadAttachmentsToLocalFolder now points to /upload-to-cloud and
  sends patientId so the backend can create the patient folder

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

apps/Backend/src/ai/internal-chat-graph.ts

@@ -59,9 +59,14 @@ Intents:
                           e.g. "check Maria Jesus", "verify insurance for John Smith"
 - eligibility_by_id     : user provides a member ID and date of birth (no patient name)
                           e.g. "check masshealth for 100xxxx, 10/10/1988"
-- check_and_claim       : user wants to check eligibility AND submit procedures as claims
+                          ALSO use this when user wants to check eligibility AND schedule/add an appointment on a date
+                          e.g. "check mh for 100xxxx, 10/10/1988 and schedule on 4/10/2026"
+                          e.g. "check mh for 100xxxx, 10/10/1988 and make appointment on 5/1/2026"
+                          In these cases set appointmentDate to the mentioned date (YYYY-MM-DD)
+- check_and_claim       : user wants to check eligibility AND submit PROCEDURES/BILLING as claims
                           e.g. "check masshealth for 100xxxx, 10/10/1988 and claim perio exam and adult cleaning"
                           e.g. "check Maria Jesus and claim D0120 D1110"
+                          Only use this when procedures or CDT codes are mentioned — NOT for scheduling
 - find_patient          : look up a patient record only, no eligibility
                           e.g. "find patient John", "look up Smith"
 - schedule_appointment  : add a patient to the schedule (today or a specified date/time)
@@ -84,6 +89,11 @@ Intents:
 Rules:
 - For check_and_claim and claim_only, procedureNames should be the RAW user text
   (e.g. "perio exam", "adult cleaning", "D0120") — do NOT translate to codes
+- IMPORTANT: If the user says "with the x ray", "with x ray", "attach x ray", "the x ray", "with xray",
+  "with the attachment", "the attachment", "with attachment", "with the file", "with the image",
+  "with the scan", "with the photo", "with the document", or any variation meaning an uploaded/attached file,
+  do NOT include it in procedureNames. It refers to a file attachment, not a billable procedure.
+  Only include actual clinical procedures in procedureNames.
 - For composite fillings with a tooth number, preserve the EXACT notation including tooth# and surfaces:
   e.g. "composite #29 O", "#8 MO", "composite #11 MOD" — keep the #number and surface letters together as one entry
 - For RCT/root canal with a tooth number, preserve the tooth# in the entry: