Add custom path support for cli/tui in terminal config

tests/cli/paths.test.ts

@@ -12,6 +12,20 @@ import {
 } from "../../src/utils/paths";
 
 describe("paths utilities", () => {
+  const originalConfigDir = process.env["XO_CONFIG_DIR"];
+
+  beforeEach(() => {
+    delete process.env["XO_CONFIG_DIR"];
+  });
+
+  afterEach(() => {
+    if (originalConfigDir === undefined) {
+      delete process.env["XO_CONFIG_DIR"];
+    } else {
+      process.env["XO_CONFIG_DIR"] = originalConfigDir;
+    }
+  });
+
   describe("getConfigDir", () => {
     test("returns path under ~/.config/xo-cli", () => {
       const configDir = getConfigDir();
@@ -24,6 +38,26 @@ describe("paths utilities", () => {
 
       expect(existsSync(configDir)).toBe(true);
     });
+
+    test("uses XO_CONFIG_DIR when configured", () => {
+      const customDir = path.join(tmpdir(), `xo-cli-config-test-${Date.now()}`);
+      process.env["XO_CONFIG_DIR"] = customDir;
+
+      try {
+        expect(getConfigDir()).toBe(customDir);
+        expect(getMnemonicsDir()).toBe(path.join(customDir, "mnemonics"));
+        expect(getDataDir()).toBe(path.join(customDir, "data"));
+        expect(getWalletConfigPath()).toBe(path.join(customDir, ".wallet"));
+      } finally {
+        rmSync(customDir, { recursive: true, force: true });
+      }
+    });
+
+    test("uses the default when XO_CONFIG_DIR is empty", () => {
+      process.env["XO_CONFIG_DIR"] = "";
+
+      expect(getConfigDir()).toBe(path.join(homedir(), ".config", "xo-cli"));
+    });
   });
 
   describe("getMnemonicsDir", () => {
@@ -106,6 +140,7 @@ describe("paths utilities", () => {
     });
 
     test("resolves from global mnemonics dir when file exists there", () => {
+      process.env["XO_CONFIG_DIR"] = tempDir;
       const mnemonicsDir = getMnemonicsDir();
       const testFile = path.join(mnemonicsDir, "mnemonic-global-test");