Document compose-safe DEFAULT_FROM_EMAIL quoting.

Docker Compose .env rejects "Name" <addr>; prefer a bare address or one pair of quotes around the whole From value.

site/monica_site/settings/base.py

@@ -221,10 +221,18 @@ def format_from_email(address: str | None, display_name: str | None = None) -> s
 
     Bare ``noreply@…`` shows as "noreply". Prefer
     ``"Monica Dhillon" <noreply@…>`` (RFC 5322).
+
+    Docker Compose ``.env`` cannot parse split quotes like
+    ``"Name" <addr>`` — use a bare address (this helper adds SITE_NAME)
+    or one pair of quotes around the whole value:
+    ``DEFAULT_FROM_EMAIL="Monica Dhillon <addr@domain>"``.
     """
     raw = (address or "").strip()
     if not raw:
         return ""
+    # Strip a single layer of wrapping quotes from env/compose.
+    if len(raw) >= 2 and raw[0] == raw[-1] and raw[0] in {'"', "'"}:
+        raw = raw[1:-1].strip()
     if "<" in raw and ">" in raw:
         return raw
     name = (display_name or SITE_NAME or "").strip()