fix: add ts number annotations for app-server v2 types (#7492)

These will be more ergonomic to work with in Typescript.

codex-rs/app-server-protocol/src/protocol/mappers.rs

@@ -5,7 +5,9 @@ impl From<v1::ExecOneOffCommandParams> for v2::CommandExecParams {
     fn from(value: v1::ExecOneOffCommandParams) -> Self {
         Self {
             command: value.command,
-            timeout_ms: value.timeout_ms,
+            timeout_ms: value
+                .timeout_ms
+                .map(|timeout| i64::try_from(timeout).unwrap_or(60_000)),
             cwd: value.cwd,
             sandbox_policy: value.sandbox_policy.map(std::convert::Into::into),
         }