fix: clean detached auth profile secrets

src/agents/auth-profiles.store.save.test.ts

@@ -1,3 +1,4 @@
+import { createHash } from "node:crypto";
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
@@ -77,6 +78,17 @@ function readRawPersistedAuthProfiles(agentDir?: string): {
   };
 }
 
+function resolveExpectedOAuthProfileSecretPath(
+  agentDir: string | undefined,
+  profileId: string,
+): string {
+  const id = createHash("sha256")
+    .update(`${authProfileStoreKey(agentDir)}\0${profileId}`)
+    .digest("hex")
+    .slice(0, 32);
+  return path.join(resolveOAuthDir(), "auth-profiles", `${id}.json`);
+}
+
 describe("saveAuthProfileStore", () => {
   let stateRoot = "";
 
@@ -353,6 +365,36 @@ describe("saveAuthProfileStore", () => {
     }
   });
 
+  it("removes detached OAuth secret files when profiles are deleted", async () => {
+    const agentDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-auth-save-secret-"));
+    const profileId = "openai-codex:default";
+    try {
+      saveAuthProfileStore(
+        {
+          version: 1,
+          profiles: {
+            [profileId]: {
+              type: "oauth",
+              provider: "openai-codex",
+              access: "access-token",
+              refresh: "refresh-token",
+              expires: Date.now() + 60_000,
+            },
+          },
+        },
+        agentDir,
+      );
+      const secretPath = resolveExpectedOAuthProfileSecretPath(agentDir, profileId);
+      await expect(fs.stat(secretPath)).resolves.toBeTruthy();
+
+      saveAuthProfileStore({ version: 1, profiles: {} }, agentDir);
+
+      await expect(fs.stat(secretPath)).rejects.toMatchObject({ code: "ENOENT" });
+    } finally {
+      await fs.rm(agentDir, { recursive: true, force: true });
+    }
+  });
+
   it("writes runtime scheduling state to SQLite only", async () => {
     const agentDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-auth-save-state-"));
     try {