TUI fetches the whole provider catalog on every bootstrap #53590

Description

Every TUI bootstrap fetches GET /provider, at startup and again whenever it reloads for another directory or workspace. On my machine that response is 6.7 MB (227 providers, 8,452 models) and takes 185–420 ms even with a warm server. It goes into sync.data.provider_next, which only the connect dialog and the provider list in the model picker read.

I switch between sessions in different directories a lot, and this request was most of the time each directory reload spent before it could apply. Parsing it also blocked input for 50–90 ms each time.

Plugins

none

OpenCode version

dev (4ac0d9c)

Steps to reproduce

1. Start the TUI and watch its requests, or switch to a session in another directory.
2. GET /provider is fetched and parsed every time, even if no dialog is opened.

Operating System

macOS 26