feat(ui): add network approval persistence plumbing (#12358)

## Summary
- add TUI approval options for persistent network host rules
- add app-server v2 approval payload plumbing for network approval
context + proposed network policy amendments
- add app-server handling to translate `applyNetworkPolicyAmendment`
decisions back into core review decisions
- update docs/test client output and generated app-server schemas/types

codex-rs/app-server-test-client/src/lib.rs

@@ -1538,6 +1538,7 @@ impl CodexClient {
             command_actions,
             additional_permissions,
             proposed_execpolicy_amendment,
+            proposed_network_policy_amendments,
         } = params;
 
         println!(
@@ -1569,6 +1570,9 @@ impl CodexClient {
         if let Some(execpolicy_amendment) = proposed_execpolicy_amendment.as_ref() {
             println!("< proposed execpolicy amendment: {execpolicy_amendment:?}");
         }
+        if let Some(network_policy_amendments) = proposed_network_policy_amendments.as_ref() {
+            println!("< proposed network policy amendments: {network_policy_amendments:?}");
+        }
 
         let decision = match self.command_approval_behavior {
             CommandApprovalBehavior::AlwaysAccept => CommandExecutionApprovalDecision::Accept,