Add room_name to meeting table examples in docs

Include room_name as a column in meeting DataFrames — it shows the
virtual room name and helps identify meeting location when title is
generic or missing.

docs/notebook-patterns.md

@@ -394,6 +394,8 @@ Meetings have a `participants` list where each entry may or may not have a resol
 
 **Strategy:** Query by `contact_ids` to get meetings with resolved participants, then optionally do a client-side check on `participants[].display_name` or `transcript` for unresolved ones.
 
+> **Always include `room_name` in meeting tables.** The `room_name` field contains the virtual room name (e.g., `standup-office-bogota`) and often indicates where the meeting took place. It's useful context when `title` is generic or missing — include it as a column alongside `title`.
+
 ```python
 @app.cell
 def fetch_meetings(fetch_all, DATAINDEX, target_id, my_id):
@@ -413,7 +415,8 @@ def meeting_table(resolved_meetings, target_name, pl):
         _names = [_p["display_name"] for _p in _participants]
         _rows.append({
             "date": (_m.get("start_time") or _m["timestamp"])[:10],
-            "title": _m.get("title", _m.get("room_name", "Untitled")),
+            "title": _m.get("title", "Untitled"),
+            "room_name": _m.get("room_name", ""),
             "participants": ", ".join(_names),
             "has_transcript": _m.get("transcript") is not None,
             "has_summary": _m.get("summary") is not None,
@@ -654,6 +657,7 @@ When generating marimo notebooks, follow these rules strictly. Violations cause
 - **Import stdlib modules in `setup` too** — even `from datetime import datetime` creates a top-level name. If two cells both import `datetime`, marimo errors. Import it once in `setup` and receive it as a parameter, or use it inside a `_`-prefixed helper function where it's naturally scoped.
 - **Every non-utility cell must show a preview** — see the "Cell Output Previews" section below.
 - **Use separate display cells for DataFrames** — the build cell returns the DataFrame and shows a `mo.md()` count/heading; a standalone display cell (e.g., `def show_table(df): df`) renders it as an interactive table the user can sort and filter.
+- **Include `room_name` when listing meetings** — the virtual room name provides useful context about where the meeting took place (e.g., `standup-office-bogota`). Show it as a column alongside `title`.
 - **Keep cell output expressions at the top level** — if a cell conditionally displays a DataFrame, initialize `_output = None` before the `if`/`else`, assign inside the branches, then put `_output` as the last top-level expression. Expressions inside `if`/`else`/`for` blocks are silently ignored by marimo.
 - **Put all user parameters in a `params` cell as the first cell** — date ranges, search terms, target names, limits. Never hardcode these values deeper in the notebook.
 - **Declare cells as `async def` when using `await`** — `@app.cell` followed by `async def cell_name(...)`. This includes cells using `asyncio.gather`, `await llm_call(...)`, or any async API.