config: clear three of 472's five QA blockers (V-459)

morning_routines, feeds, crawl.on_demand and netscan.enabled in
deploy/mavend.json; -ambient-token on mavweb, interpolated from a gitignored
/.env. All verified on the box: the dispatcher builds the morning plan,
/api/ambient answers 401/201, the crawler reads a named page, netscan finds 3
devices, and /events fills with scan:lan and ambient:notif.

Filed 482 (ambient reads a notification's wall clock as UTC). Corrected 479:
both capabilities work once configured, so it is not a routing defect.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NJYcaBiuny9UGSpFweQVQ1

.gitignore

@@ -40,6 +40,9 @@ deploy/telegram.env
 deploy/zenmoney.token
 # IMAP password, read by mavmaild (never in argv, never committed)
 deploy/imap.password
+# Compose interpolation secrets — MAVEN_AMBIENT_TOKEN today. docker compose
+# reads this file itself; it is not an env_file on any service.
+/.env
 
 # Temp files
 /tmp/