Revert payment/wechat, sora/claude-max cleanup, fork-only migrations, and cosmetic changes that were brought in by the release sync commit. Keep only channel-monitor related improvements: - PublicSettingsInjectionPayload named struct with drift test - ChannelMonitorRunner graceful shutdown in wire - image_output_price in SupportedModelChip - Simplified buildSelfNavItems in AppSidebar - Gateway WARN logs for 503 branches