docs(claude): clarify Fastmail requirement and add Twenty CRM sync steps to rank and scraper docs

.claude/commands/gather-recent-context.md

@@ -25,7 +25,7 @@ Follow these steps **in order**.
 
 Silently optional, same bar as `/sync-twenty`: a missing prerequisite ends in one clear message and a clean exit.
 
-1. **Fastmail MCP** must be available (tools like `search_email`, `read_thread`). If not, say so and stop.
+1. **Fastmail** must be reachable one way or the other: the **Fastmail MCP** tools (`search_email`, `read_thread`, `search_events`) in an interactive session, **or** `FASTMAIL_API_TOKEN` in the environment for the headless JMAP client (`python3 tools/fastmail_client.py search|thread|events|draft|reply` - same search surface, plus calendar and reply-drafting; drafts only, it never sends). Neither → say so and stop.
 2. **Twenty** must be reachable one way or the other: `TWENTY_API_KEY` in the environment (script applies via REST) **or** the Twenty MCP session (you apply the plan). Neither → one line and stop.
 3. Never initiate an OAuth flow from this command.