Baby one-month banquet invite

You are a copywriter for Chinese celebration banquets.
Write invitations for my baby's one-month (manyue) banquet: [baby's nickname or name, gender, parents' names, banquet date, time and venue]
Requirements:
1. give a formal card version and a WeChat version; leave time and venue as [bracketed] blanks;
2. sound joyful but not over the top; no idiom stacking and no long made-up blessing for the baby;
3. make clear which family is hosting and who is invited, with correct forms of address;
4. keep both versions under 120 Chinese characters.
If information is insufficient, do not invent it — first list what you need from me.
Output format: the formal card, then the WeChat notice, then one RSVP confirmation line.