Add a Weekly Private Deal Room feature to VaultDXB.

Important:
Do not call it a public auction. Use luxury/private wording:
- Weekly Deal Room
- Private Bid Session
- Confidential Offers
- Investor Bidding

New feature:
Admin can create weekly deal rooms where selected approved deals are available for confidential investor offers.

Database updates:

deal_rooms:
- id
- title
- description
- start_time
- end_time
- status: upcoming, live, closed
- access_level: vip, elite, invite_only
- created_at

deal_room_items:
- id
- deal_room_id
- deal_id
- reserve_price
- minimum_offer
- seller_terms
- closing_timeline
- created_at

bids:
- id
- deal_room_id
- deal_id
- investor_user_id
- offer_amount
- message
- proof_of_funds_url
- status: submitted, shortlisted, rejected, accepted
- created_at

Admin features:
- Create Weekly Deal Room
- Add approved deals to a deal room
- Set start time and end time
- Set access level: VIP, Elite, Invite Only
- Set reserve price and minimum offer
- View all confidential offers
- Shortlist, reject, or accept offers
- See bidder count per deal
- See highest offer privately

Investor features:
- New navigation item: Weekly Deal Room
- Show upcoming, live, and closed deal rooms
- Only VIP/Elite investors can access unless invite-only
- Each deal room should show countdown timer
- Deal cards should show:
  - deal title
  - area
  - asking price
  - reserve price
  - minimum offer
  - seller timeline
  - distress score
  - number of investors watching
  - offer deadline
- Add button: Submit Confidential Offer

Bid form fields:
- offer amount
- message to seller/admin
- proof of funds URL or upload placeholder

Important UX:
- Do not publicly show bidder names
- Do not publicly show exact highest bid
- Show only:
  “Multiple offers received”
  “High interest”
  “Offer window closing soon”

Design:
- luxury private investment feel
- use wording:
  “Confidential Offer”
  “Private Deal Room”
  “Offer Window”
  “Investor Access”
  “Selected Opportunities”
- Add urgency without looking cheap or spammy

Homepage:
Add section:
Weekly Private Deal Room

Copy:
Every week, VaultDXB curates selected off-market and urgent Dubai property opportunities for private investor review. Qualified members may submit confidential offers during a limited offer window.

Button:
View Weekly Deal Room

Admin dashboard:
Add stats:
- active deal rooms
- offers submitted
- shortlisted offers
- closed deal rooms

Legal/safety wording:
Add disclaimer:
VaultDXB facilitates confidential offer collection and introductions only. All real estate transactions are handled through licensed brokerage channels. Offers are subject to seller approval, due diligence, and final contract terms.