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/src/lib/sessionSliding.ts

@@ -29,18 +29,28 @@ export function shouldAttemptSlidingSessionRenew({
   }
 
   if (typeof expiresAtSec !== "number") {
+    console.debug("[sessionSliding] expiresAtSec is not a number, skipping renew");
     return false;
   }
 
   const remainingMs = expiresAtSec * 1000 - nowMs;
-  if (remainingMs <= 0 || remainingMs > thresholdMs) {
+  const remainingMin = Math.floor(remainingMs / 1000 / 60);
+
+  if (remainingMs <= 0) {
+    console.debug("[sessionSliding] Session already expired, skipping renew");
+    return false;
+  }
+
+  if (remainingMs > thresholdMs) {
     return false;
   }
 
   if (nowMs - lastAttemptAtMs < throttleMs) {
+    console.debug("[sessionSliding] Throttling renewal attempt");
     return false;
   }
 
+  console.info(`[sessionSliding] Attempting sliding session renewal. Remaining: ${remainingMin}m`);
   return true;
 }
 
@@ -60,17 +70,27 @@ export function shouldAttemptUnlimitedSessionRenew({
   }
 
   if (typeof expiresAtSec !== "number") {
+    console.debug("[sessionSliding] expiresAtSec is not a number, skipping unlimited renew");
     return false;
   }
 
   const remainingMs = expiresAtSec * 1000 - nowMs;
-  if (remainingMs <= 0 || remainingMs > thresholdMs) {
+  const remainingMin = Math.floor(remainingMs / 1000 / 60);
+
+  if (remainingMs <= 0) {
+    console.debug("[sessionSliding] Session already expired, skipping unlimited renew");
+    return false;
+  }
+
+  if (remainingMs > thresholdMs) {
     return false;
   }
 
   if (nowMs - lastAttemptAtMs < throttleMs) {
+    console.debug("[sessionSliding] Throttling unlimited renewal attempt");
     return false;
   }
 
+  console.info(`[sessionSliding] Attempting unlimited session renewal. Remaining: ${remainingMin}m`);
   return true;
 }