fix: remove console.warn that leaks into TUI textbox

getConfigContext() emitted a console.warn when called before
initConfigContext() completed. Since initConfigContext runs async
(spawns opencode --version subprocess), other modules calling
getConfigDir/getConfigJson could trigger this warning during startup.

The fallback behavior is intentional and safe (defaults to standard
CLI paths), but console.warn writes to stderr which the TUI captures,
causing the warning to render inside the user's textbox.

Fixes #2183

src/cli/config-manager/config-context.ts

@@ -19,9 +19,6 @@ export function initConfigContext(binary: OpenCodeBinaryType, version: string |
 
 export function getConfigContext(): ConfigContext {
   if (!configContext) {
-    if (process.env.NODE_ENV !== "production") {
-      console.warn("[config-context] getConfigContext() called before initConfigContext(); defaulting to CLI paths.")
-    }
     const paths = getOpenCodeConfigPaths({ binary: "opencode", version: null })
     configContext = { binary: "opencode", version: null, paths }
   }