feat(email): send attachments as WhatsApp documents, fix forward sender

- Add /send-document endpoint to WhatsApp bridge (base64 document send)
- save_email_as_note() now saves attachment files to disk alongside note
- email_digest: extract original sender for Fwd: emails so header shows
  the real author, not the forwarder; send attachment files after summary
- email_forward: send attachment files as documents after text parts
- Add extract_original_sender() and save_email_attachment_files() helpers

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

tools/email_forward.py

@@ -9,6 +9,8 @@ Usage:
 
 import sys
 import re
+import base64
+import mimetypes
 import requests
 from pathlib import Path
 
@@ -115,6 +117,21 @@ def send_whatsapp(to: str, text: str) -> bool:
         return False
 
 
+def send_whatsapp_document(to: str, filename: str, data: bytes) -> bool:
+    try:
+        mimetype = mimetypes.guess_type(filename)[0] or "application/octet-stream"
+        resp = requests.post(
+            f"{BRIDGE_URL}/send-document",
+            json={"to": to, "filename": filename, "mimetype": mimetype,
+                  "data_base64": base64.b64encode(data).decode()},
+            timeout=30,
+        )
+        return resp.json().get("ok", False)
+    except Exception as e:
+        print(f"[eroare send-document] {e}", file=sys.stderr)
+        return False
+
+
 def fetch_unread_emails():
     """Preia emailurile necitite din inbox fără a le salva sau marca ca citite."""
     mail = imaplib.IMAP4_SSL(IMAP_SERVER, IMAP_PORT)
@@ -138,12 +155,24 @@ def fetch_unread_emails():
         if sender_email not in WHITELIST:
             continue
 
+        # Extract attachment data (name → bytes)
+        att_data = {}
+        if msg.is_multipart():
+            for part in msg.walk():
+                fname = part.get_filename()
+                if fname:
+                    fname = decode_mime_header(fname)
+                    payload = part.get_payload(decode=True)
+                    if payload:
+                        att_data[fname] = payload
+
         results.append({
             'subject': decode_mime_header(msg['Subject']),
             'from_full': from_addr,
             'date': msg['Date'],
             'body': get_email_body(msg),
-            'attachments': get_email_attachments(msg),
+            'attachments': list(att_data.keys()),
+            'attachment_data': att_data,
         })
 
     mail.logout()
@@ -172,6 +201,8 @@ def run_forward():
                 print(f"\n--- FORWARD {i+1}/{len(parts)} (dry-run) ---")
                 print(part)
                 print("------------------------\n")
+            if em.get('attachment_data'):
+                print(f"Atașamente: {list(em['attachment_data'].keys())}")
         else:
             for part in parts:
                 ok = send_whatsapp(owner_jid, part)
@@ -181,6 +212,13 @@ def run_forward():
             else:
                 print(f"Trimis pe WhatsApp ({len(parts)} mesaje): {subject}")
 
+            for fname, fdata in em.get('attachment_data', {}).items():
+                ok_att = send_whatsapp_document(owner_jid, fname, fdata)
+                if ok_att:
+                    print(f"Atașament trimis: {fname}")
+                else:
+                    print(f"Atașament eșuat: {fname}")
+
 
 if __name__ == "__main__":
     run_forward()