Neutralize release.yml: remove Corsali/Vana signing + service URLs

[tnunamak]

release.yml cannot ship under PDP-Connect as-is. It:

• signs as Developer ID Application: Corsali, Inc (Vana's entity)
• hardcodes Vana services: VITE_PRIVY_APP_ID, VITE_PRIVY_CLIENT_ID, VITE_SESSION_RELAY_URL, VITE_GATEWAY_URL
• uses Vana's Tauri updater key

Blockers before it can release:

1. PDP-Connect Apple Developer ID + notarization creds (or drop signing)
2. PDP-Connect Tauri updater key
3. Config-drive the Privy/gateway/relay URLs

Workflow left disabled until resolved.