web: websearch provider consent form is never displayed, every call times out

Description

On the V2 web UI, the first websearch call never completes: the provider-consent form is created server-side but never rendered, so every call times out after 60 s with Web search cancelled. The consent form carries metadata.kind = "websearch.provider" (packages/core/src/tool/plugin/websearch.ts), while the web app only selects forms with metadata?.kind === "question" (packages/app/src/session/requests/session-request-tree.ts:51, rendered via session-composer-region.tsx for question/permission requests only). The search providers themselves are healthy — bypassing the consent step via POST /api/websearch with an explicit providerID returns results.

OpenCode version

v0.0.0-beta-18866

Steps to reproduce

1. Ensure no provider is stored (kv has no websearch:provider key).
2. Run a websearch call from the web UI (mobile or desktop).
3. Watch the session: no consent card (Allow search via ...) appears within 60 s.
4. The call fails with Web search cancelled after about 60 s (Effect.timeoutOrElse({ duration: "1 minute" }) in packages/core/src/tool/plugin/websearch.ts).

Plugins

none

Operating System

Linux (Ubuntu), x64

Additional context

• Verified the providers are healthy by calling POST /api/websearch directly with explicit providerID: Exa and Tavily both returned results. Exa works without an API key.
• The TUI session view (packages/tui/src/routes/session/index.tsx:219-225,1473-1477) lists forms without a kind filter and renders the first pending form, so it is not affected by this issue.
• Workaround: pre-save a provider selection so the consent step is skipped, e.g. websearch:provider = "exa" in kv (selection persists via packages/core/src/websearch.ts, ProviderKey). Revert with DELETE FROM kv WHERE key='websearch:provider';.
• Reproduces on every call while no provider is stored; the form is missing in both mobile and desktop web UI layouts.