Attach call recording + transcript to the Odoo lead (Phase 3 item)

odoo_client.attach_call_artifacts posts the transcript to the lead's chatter
(readable in place) and attaches transcript_<sid>.txt + the stereo call WAV.
bot.py wires it post-call: extract_and_record now returns the Odoo ref
(persisted_to), the in-call tool path stamps it too, the audiobuffer handler
records the saved WAV path, and the attach runs in a thread after the lead
lands (brief wait for the async WAV write; failures only log — the lead is
already safe). Verified e2e against db1: create -> attach -> verify -> delete.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

extract.py

@@ -42,6 +42,20 @@ _EXTRACT_INSTRUCTIONS = (
 )
 
 
+def format_transcript(messages, agent_name="AVA") -> str:
+    """Plain-text transcript of the call (Caller/agent turns) for chatter/attachments."""
+    lines = []
+    for m in messages:
+        if m.get("role") not in ("user", "assistant"):
+            continue
+        content = m.get("content")
+        if not isinstance(content, str) or not content.strip():
+            continue
+        who = "Caller" if m["role"] == "user" else agent_name
+        lines.append(f"{who}: {content.strip()}")
+    return "\n".join(lines)
+
+
 async def extract_and_record(messages, ollama_url, model, call_sid=None, caller_number=None):
     """Extract an appointment from the transcript and persist it. Returns the record
     dict if one was saved, else None."""
@@ -136,6 +150,7 @@ async def extract_and_record(messages, ollama_url, model, call_sid=None, caller_
         "source": "post_call_extraction",
     }
     where = persist_appointment(record)
+    record["persisted_to"] = where  # "odoo:<model>:<id>" | "jsonl" — used to attach artifacts
     logger.info(
         f"Post-call {kind} saved ({where}): {record['patient_name']} / "
         f"{record['location']} / reason={record['reason']} / ins={record['insurance']} / "