Smart Relay PCB design, testing & debugging and verification

I need a brand-new hardware design built around an ESP8266 (NodeMCU class) / ESP32 that can drive five independent 240 VAC relay channels. The board must let me control everything over Wi-Fi through ESPHome/Home Assistant while still working perfectly with the existing wall switches. In day-to-day use those channels will power a mix of light circuits, ceiling fans and a few socket loads, so each relay has to handle up to 16 A safely and repeatedly.

Key functional blocks I am looking for
• Five SPDT relays with true 2-way switch sensing so the physical rocker always wins and its state is reported back to Home Assistant.
• presence sensor on board for room occupancy.
• fan regulator control indian home
• Four 5 V USB-A charge ports, one of which must stay alive from a cell during a mains outage.
• The same batt should drive an automatic LED emergency light strip when power fails.
• Robust, isolated AC/DC conversion, surge protection, track clearance and proper creepage for 240 VAC.
• energy metering tbd, so leave that silicon out.

Deliverables I expect
1. Complete schematic in KiCad 7 (or newer) with clearly labelled test points and safety notes.
2. Multi-layer PCB layout, Gerbers and manufacturing files ready for JLC/PCBWay.
3. Consolidated BOM with manufacturer part numbers and availability notes.
4. Documentation for the schematic for future programming
5. A concise prototype build and test plan, including suggested jig or fixture ideas for high-voltage proof testing.

In your proposal please highlight any 230–240 VAC boards you have taken from concept to production. I also need a fixed-price quote broken into milestones (design, review, final files). Before finalising the project, a google meet is required.

If you have questions about form factor, enclosure constraints or certification targets, let’s iron them out early. I’m ready to move as soon as I find the right engineer.