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>

bridge/whatsapp/index.js

@@ -187,6 +187,29 @@ app.post('/send', async (req, res) => {
   }
 });
 
+app.post('/send-document', async (req, res) => {
+  const { to, filename, mimetype, data_base64, caption } = req.body || {};
+  if (!to || !filename || !data_base64) {
+    return res.status(400).json({ ok: false, error: 'missing "to", "filename", or "data_base64"' });
+  }
+  if (!connected || !sock) {
+    return res.status(503).json({ ok: false, error: 'not connected to WhatsApp' });
+  }
+  try {
+    const buffer = Buffer.from(data_base64, 'base64');
+    const result = await sock.sendMessage(to, {
+      document: buffer,
+      fileName: filename,
+      mimetype: mimetype || 'application/octet-stream',
+      caption: caption || '',
+    });
+    res.json({ ok: true, id: result.key.id });
+  } catch (err) {
+    console.error('[whatsapp] Send document failed:', err.message);
+    res.status(500).json({ ok: false, error: err.message });
+  }
+});
+
 app.post('/react', async (req, res) => {
   const { to, id, emoji, fromMe, participant } = req.body || {};
 

tools/email_digest.py

@@ -8,6 +8,7 @@ Usage:
 """
 
 import sys
+import base64
 import subprocess
 import requests
 from pathlib import Path
@@ -15,7 +16,7 @@ from pathlib import Path
 PROJECT_ROOT = Path(__file__).resolve().parent.parent
 sys.path.insert(0, str(PROJECT_ROOT))
 
-from tools.email_process import save_unread_emails
+from tools.email_process import save_unread_emails, extract_original_sender
 from src.config import Config
 
 BRIDGE_URL = "http://127.0.0.1:8098"
@@ -35,6 +36,8 @@ def generate_summary(filepath: str, subject: str, from_full: str, date: str) ->
     except Exception as e:
         return f"[Eroare la citirea fișierului: {e}]"
 
+    display_from = extract_original_sender(subject, email_content, from_full)
+
     prompt = f"""Mai jos este conținutul unui email. Scrie un rezumat factual pentru WhatsApp.
 
 EMAIL:
@@ -43,18 +46,14 @@ EMAIL:
 Instrucțiuni:
 - Începe cu header-ul fix (fără modificări):
   SUBIECT: {subject}
-  De la: {from_full}
+  De la: {display_from}
   Primit: {date}
   ---
-- Dacă emailul este un forward (subiect începe cu Fwd:/Fw: sau conține "---------- Forwarded message"):
-  * Ignoră complet persoana care a forwardat. Nu o menționez în rezumat.
-  * Identifică expeditorul original din corpul emailului (câmpurile From/De la din headerul forwarded).
-  * Rezumatul trebuie să fie despre mesajul original, ca și cum ar fi fost primit direct de la acel expeditor.
+- Ignoră complet orice persoană care a forwardat emailul. Nu o menționă în rezumat.
 - Scrie rezumatul în stil briefing: factual, clar, persoana a 3-a.
   * Prima propoziție: cine a trimis mesajul original, ce, cui.
-  * Ce conține mesajul — concret și direct. Omite politețuri, scuze și amabilități; include doar faptele.
+  * Ce conține mesajul — concret și direct. Omite politețuri și amabilități; include doar faptele.
   * Dacă există termene, date, locuri sau acțiuni cerute — menționează-le explicit.
-  * Dacă există atașamente — listează-le la final: "Atașat: ..."
   * Dacă există linkuri acționabile (formulare, documente), adaugă o secțiune LINKURI la final.
 - Nu adăuga secțiuni goale sau care nu se aplică emailului.
 - Plain text, fără markdown. Fără emoji.
@@ -89,6 +88,24 @@ def send_whatsapp(to: str, text: str) -> bool:
         return False
 
 
+def send_whatsapp_document(to: str, filepath: str) -> bool:
+    """Trimite un fișier ca document WhatsApp prin bridge."""
+    try:
+        path = Path(filepath)
+        data_b64 = base64.b64encode(path.read_bytes()).decode()
+        import mimetypes
+        mimetype = mimetypes.guess_type(path.name)[0] or "application/octet-stream"
+        resp = requests.post(
+            f"{BRIDGE_URL}/send-document",
+            json={"to": to, "filename": path.name, "mimetype": mimetype, "data_base64": data_b64},
+            timeout=30,
+        )
+        return resp.json().get("ok", False)
+    except Exception as e:
+        print(f"[eroare send-document] {e}", file=sys.stderr)
+        return False
+
+
 def run_digest():
     print("📬 Verific emailuri necitite...")
     saved = save_unread_emails()
@@ -110,6 +127,7 @@ def run_digest():
         subject = result["subject"]
         from_full = result.get("from_full", result.get("from", ""))
         date = result.get("date", "")
+        attachment_paths = result.get("attachment_paths", [])
         print(f"📧 Procesez: {subject}")
 
         summary = generate_summary(filepath, subject, from_full, date)
@@ -117,6 +135,8 @@ def run_digest():
         if DRY_RUN:
             print("\n--- REZUMAT (dry-run) ---")
             print(summary)
+            if attachment_paths:
+                print(f"Atașamente: {attachment_paths}")
             print("------------------------\n")
         else:
             ok = send_whatsapp(owner_jid, summary)
@@ -125,6 +145,14 @@ def run_digest():
             else:
                 print(f"❌ Trimitere eșuată: {subject}")
 
+            for att_path in attachment_paths:
+                ok_att = send_whatsapp_document(owner_jid, att_path)
+                name = Path(att_path).name
+                if ok_att:
+                    print(f"✅ Atașament trimis: {name}")
+                else:
+                    print(f"❌ Atașament eșuat: {name}")
+
 
 if __name__ == "__main__":
     run_digest()

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()

tools/email_process.py

@@ -93,6 +93,46 @@ def get_email_attachments(msg) -> list:
             attachments.append(f"[{part.get_content_type()}]")
     return attachments
 
+def save_email_attachment_files(msg, dest_dir: Path) -> list:
+    """Save attachment files from email to dest_dir. Returns list of saved file paths."""
+    saved = []
+    if not msg.is_multipart():
+        return saved
+    dest_dir.mkdir(parents=True, exist_ok=True)
+    for part in msg.walk():
+        filename = part.get_filename()
+        if not filename:
+            continue
+        filename = decode_mime_header(filename)
+        payload = part.get_payload(decode=True)
+        if payload is None:
+            continue
+        dest = dest_dir / filename
+        # Avoid overwriting — append counter if needed
+        counter = 1
+        while dest.exists():
+            stem, suffix = Path(filename).stem, Path(filename).suffix
+            dest = dest_dir / f"{stem}_{counter}{suffix}"
+            counter += 1
+        dest.write_bytes(payload)
+        saved.append(dest)
+    return saved
+
+def extract_original_sender(subject: str, body_content: str, from_full: str) -> str:
+    """If email is a forward, extract original sender from body."""
+    if not re.match(r'^(fwd?|fw)\s*[:\s]', subject, re.IGNORECASE):
+        return from_full
+    match = re.search(
+        r'(?:De la|From):\s*(.+?)(?:\n|$)',
+        body_content, re.IGNORECASE | re.MULTILINE
+    )
+    if match:
+        candidate = match.group(1).strip()
+        # Skip blank or markdown artifacts
+        if candidate and not candidate.startswith('**') and '@' in candidate or len(candidate) > 3:
+            return candidate
+    return from_full
+
 def extract_sender_email(from_header: str) -> str:
     """Extract just the email address from From header"""
     match = re.search(r'<([^>]+)>', from_header)
@@ -205,6 +245,10 @@ def save_email_as_note(eid: str) -> dict:
     KB_PATH.mkdir(parents=True, exist_ok=True)
     filepath.write_text(content, encoding='utf-8')
 
+    # Save attachment files next to the note
+    att_dir = KB_PATH / f"{date_prefix}_{slug}_attachments"
+    attachment_paths = save_email_attachment_files(msg, att_dir)
+
     # Mark as seen
     mail.store(eid.encode(), '+FLAGS', '\\Seen')
     mail.logout()
@@ -216,6 +260,7 @@ def save_email_as_note(eid: str) -> dict:
         'from': sender_email,
         'from_full': from_addr,
         'date': date_str,
+        'attachment_paths': [str(p) for p in attachment_paths],
     }
 
 def save_unread_emails():