v3.2.0-rc.4

Release candidate 4 for v3.2.0 — a stability + correctness hardening pass.

Fixed

• Charge-log / costs: recorded nothing since late June on Eco-Smart solar (cp ≈ 0) and silently failed to persist on a near-full NVS partition — both fixed. Solar (green) energy is now attributed from the authoritative r_lse. Costs populate again.
• MQTT publish ring filled and dropped forever (then panicked) when MQTT was disabled / no broker — #25 (thanks @geertvanvaerenbergh).
• BLE response cross-core race that could panic on marginal links.
• MQTT resume_schedule could fault a paused charger (error 114); den V2H energy scale 10× fix; removed the bogus MQTT green_energy sensor (was the override flag); Zentri/original-Pulsar status-enum + keepalive fixes; /api/command?action=current clamped 6–32 A.
• New authoritative schedule_paused flag in /api/status (fixes the false "paused" banner during solar).
• Gateway Temperature emits null / unavailable on hardware without a real internal sensor (classic ESP32/WROOM).

Full detail in CHANGELOG.md. New charger-model reference: docs/CHARGER_QUIRKS.md.

OTA asset: wallbox-gateway-v3.2.0-rc.4-esp32s3.bin (attached by CI shortly after this release is created).