fix: resolve admin session infinite reload loop and sync auth state

- Prevent infinite redirection loop by clearing oidc-client user state on 401 errors.
- Sync apiClient request interceptor to use userManager.getUser() for reliable token retrieval.
- Add extensive console logs for better session issue diagnosis.
- Fix TS error in LoginPage by updating button variant.
- Revert 'ae03fe1' (updated playwright fixtures to real domain) as requested.

adminfront/tests/owners.spec.ts

@@ -3,7 +3,7 @@ import { expect, test } from "@playwright/test";
 test.describe("Tenant Owners Management", () => {
   test.beforeEach(async ({ page }) => {
     await page.addInitScript(() => {
-      const authority = "https://sso.hmac.kr/oidc";
+      const authority = "http://localhost:5000/oidc";
       const client_id = "adminfront";
       const key = `oidc.user:${authority}:${client_id}`;
       const authData = {
@@ -26,7 +26,7 @@ test.describe("Tenant Owners Management", () => {
     });
 
     await page.route("**/oidc/**", async (route) => {
-      await route.fulfill({ json: { issuer: "https://sso.hmac.kr/oidc" } });
+      await route.fulfill({ json: { issuer: "http://localhost:5000/oidc" } });
     });
 
     await page.route(/.*\/api\/v1\/.*/, async (route) => {