bookings: save Airbnb host threads and SF check-in details

Daly City host sent the check-in instructions on Sep 16: door code,
wifi, entry route, assigned parking and house rules. Add them to the
booking record and the Sep 19-21 address tables. Record the DTLA unit
number from the LA thread and store both message threads as sources.

bookings/stays/airbnb-la-dtla.md

@@ -3,7 +3,7 @@
 | | |
 |---|---|
 | **Listing** | [Private Apt Home W/ DTLA Views \| 1Mi to Dodger Std](https://www.airbnb.com/rooms/1293165603159436911) |
-| **Address** | 1100 W Temple Street, Los Angeles, CA 90012 |
+| **Address** | 1100 W Temple Street, **Unit 703**, Los Angeles, CA 90012 |
 | **Dates** | Sep 26 – Sep 30, 2026 (4 nights) — *moved forward one night on Sep 15, 2026* |
 | **Guests** | 4 adults |
 | **Check-in** | Sep 26, from 4:00 PM (keyless entry code) |
@@ -28,3 +28,4 @@ Strict quiet hours 8 PM – 8 AM.
 ## Sources
 
 - [Host message](../../sources/stays/2026-08-31_Airbnb_LA_DTLA_Host_Message.pdf)
+- [Airbnb message thread](../../sources/stays/2026-09-16_Airbnb_LA_DTLA_Chat.md)