feat(web): live step list, option choice card and inline approval card; drop run mode switch

- session page shows the agent.plan TodoList (drawer: one-line progress); options and approval
  cards sit at their step; composer has a "先看方案再执行" toggle instead of the mode switch
- settings expose option timeout, timeout action and approval validity; quick goals follow glossary

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/agent/agent-drawer.tsx

@@ -114,7 +114,7 @@ export function AgentDrawer() {
           ) : null}
           <div className="flex min-h-0 flex-1 flex-col px-4 py-3">
             {runId ? (
-              <AgentRunPanel runId={runId} compact className="flex-1" onRunCreated={setAgentDrawerRun} />
+              <AgentRunPanel runId={runId} compact className="flex-1" />
             ) : (
               <GoalComposer
                 key={`${context?.entityId ?? ""}${context?.releaseId ?? ""}${context?.goal ?? ""}`}
@@ -123,9 +123,9 @@ export function AgentDrawer() {
                 prefix={prefix || undefined}
                 defaultGoal={context?.goal ?? ""}
                 pending={create.isPending}
-                onSubmit={(goal, mode) =>
+                onSubmit={(goal, opts) =>
                   create.mutate(
-                    { goal: `${prefix}${goal}`, mode },
+                    { goal: `${prefix}${goal}`, ...opts },
                     {
                       onSuccess: (run) => setAgentDrawerRun(run.id),
                       onError: (e) => toast.error(errorMessage(e)),