Matrix intake: frame parse with team roster so a teammate isn't read as the prospect

Local-smoke found "jonathan is chatting with wyoming" extracted the teammate, not
the prospect. Feed the parser an optional team roster (INTAKE_TEAM_ROSTER) via a
build_system(roster) outreach frame: roster names/initials are the people doing
outreach and are never extracted; the other party is the investor/prospect. Same
framing on the revise leg. Unset roster = prior behavior.

backend/matrix_intake/bot.py

@@ -34,6 +34,9 @@ async def main():
     nudge = matrix_io.make_reply(client)
     store = proposals.ProposalStore()
     intake_room = mx["intake_room"]
+    roster = settings.team_roster()  # frames the parse: teammates do outreach, aren't prospects
+    if roster:
+        print(f"matrix-intake: team roster loaded ({len(roster)} names)", flush=True)
 
     async def handle_intake(room_id, root, text):
         # A bare yes/no/approve typed in the MAIN timeline (not inside a proposal's thread) is
@@ -44,7 +47,7 @@ async def main():
                                  "and reply there — the note is in the thread.", root)
             return
         try:
-            proposal = await asyncio.to_thread(parse.parse_message, text)
+            proposal = await asyncio.to_thread(parse.parse_message, text, roster=roster)
         except Exception as exc:  # Spark/Qwen unreachable or bad response
             await say(room_id, f"⚠️ couldn't reach the local parser: {str(exc)[:200]}", root)
             return
@@ -121,7 +124,7 @@ async def main():
             # re-run it through local Qwen (no Claude, no scrub). The human still approves the
             # revised card, so the draft→approve gate holds.
             try:
-                revised = await asyncio.to_thread(parse.revise, proposal, text)
+                revised = await asyncio.to_thread(parse.revise, proposal, text, roster=roster)
             except Exception as exc:
                 store.put(root, proposal)
                 await say(room_id, f"⚠️ couldn't apply that change ({str(exc)[:200]}).\n\nReply **yes** "