fix: E2E テストの config を v2 フォーマットで統一し認証フレーキーテストを修正

writeConfig() に v1→v2 自動ラップを追加し、CLI プロセスでの
auto-migration（ファイル再書き込み）を不要にした。
これにより別プロセス間のファイル I/O タイミング問題を解消。

Author: miya0001

tests/e2e/step_definitions/auth.steps.ts

@@ -7,10 +7,7 @@ Given("I am logged in", async function (this: GdbWorld) {
 });
 
 Given("I am logged in with token {string}", function (this: GdbWorld, token: string) {
-  const config = this.readConfig();
-  config.token = token;
-  config.url = config.url ?? this.serverUrl;
-  this.writeConfig(config);
+  this.writeConfig({ url: this.serverUrl, token });
 });
 
 Given("I am not logged in", function (this: GdbWorld) {

tests/e2e/step_definitions/token.steps.ts

@@ -5,7 +5,9 @@ Given("I am logged in with an invalidated token", async function (this: GdbWorld
   await performLogin(this);
 
   // Invalidate the token but keep the refreshToken intact
-  const config = this.readConfig();
-  config.token = "invalidated";
-  this.writeConfig(config);
+  const full = this.readFullConfig();
+  const profiles = full.profiles as Record<string, Record<string, unknown>>;
+  const active = (full.currentProfile as string) ?? "default";
+  profiles[active].token = "invalidated";
+  this.writeConfig(full);
 });

tests/e2e/support/world.ts

@@ -68,10 +68,16 @@ export class GdbWorld extends World {
     }
   }
 
-  /** Write a config file in the temp config dir */
+  /** Write a config file in the temp config dir (auto-wraps v1 flat configs into v2 format) */
   writeConfig(config: Record<string, unknown>): void {
     mkdirSync(this.configDir, { recursive: true });
-    writeFileSync(join(this.configDir, "config.json"), JSON.stringify(config, null, 2) + "\n");
+    // Ensure v2 format so the CLI doesn't need to auto-migrate (avoids extra file I/O)
+    const toWrite = config.version === 2 ? config : {
+      version: 2,
+      currentProfile: "default",
+      profiles: { default: config },
+    };
+    writeFileSync(join(this.configDir, "config.json"), JSON.stringify(toWrite, null, 2) + "\n");
   }
 
   /** Read the current config file (raw JSON) */
@@ -133,9 +139,13 @@ export async function performLogin(world: GdbWorld): Promise<Record<string, unkn
         continue;
       }
 
-      const config: Record<string, unknown> = { url: world.serverUrl, token };
-      if (data.refreshToken) config.refreshToken = data.refreshToken;
-      world.writeConfig(config);
+      const profile: Record<string, unknown> = { url: world.serverUrl, token };
+      if (data.refreshToken) profile.refreshToken = data.refreshToken;
+      world.writeConfig({
+        version: 2,
+        currentProfile: "default",
+        profiles: { default: profile },
+      });
       return world.readProfileConfig();
     } catch (err) {
       lastError = err instanceof Error ? err : new Error(String(err));