[app-server] add new account method API stubs (#5527)

These are the schema definitions for the new JSON-RPC APIs associated
with accounts. These are not wired up to business logic yet and will
currently throw an internal error indicating these are unimplemented.

codex-rs/protocol/src/account.rs

@@ -0,0 +1,35 @@
+use schemars::JsonSchema;
+use serde::Deserialize;
+use serde::Serialize;
+use ts_rs::TS;
+
+#[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq, Eq, JsonSchema, TS, Default)]
+#[serde(rename_all = "lowercase")]
+#[ts(rename_all = "lowercase")]
+pub enum PlanType {
+    #[default]
+    Free,
+    Plus,
+    Pro,
+    Team,
+    Business,
+    Enterprise,
+    Edu,
+    #[serde(other)]
+    Unknown,
+}
+
+#[derive(Debug, Clone, PartialEq, Deserialize, Serialize, JsonSchema, TS)]
+#[serde(tag = "type")]
+#[ts(tag = "type")]
+pub enum Account {
+    ApiKey {
+        api_key: String,
+    },
+    #[serde(rename = "chatgpt")]
+    #[ts(rename = "chatgpt")]
+    ChatGpt {
+        email: Option<String>,
+        plan_type: PlanType,
+    },
+}

codex-rs/protocol/src/lib.rs

@@ -1,3 +1,4 @@
+pub mod account;
 mod conversation_id;
 pub use conversation_id::ConversationId;
 pub mod config_types;