fix(core,web): retry transport and quota LLM errors, disable dead sessions on auth failure (#82)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

packages/server/test/sse-stream.test.ts

@@ -64,6 +64,7 @@ function approvalFakeSession(sessionId: string): RuntimeSession {
     generateTitle: async () => ({ title: null, usage: null }),
     compactability: () => "ok" as const,
     steer: () => false,
+    skipReconnectWait: () => false,
     async *run(_input: OmniMessage[], opts: { approve: ApproveFn; signal: AbortSignal }) {
       const tc = toolCall({ name: "exec_command", arguments: "{}", toolCallId: "tc-sse" });
       yield tc;