Refactor code for improved readability and consistency

- Updated CSRF middleware to enhance cookie value decoding.
- Reformatted OAuth proxy token store initialization for better clarity.
- Adjusted Challonge proxy router for consistent line breaks and readability.
- Enhanced OAuth router error handling and response formatting.
- Improved session router for better readability and consistency in fetching provider records.
- Refactored OAuth token store to improve key derivation logging.
- Cleaned up cookie options utility for better readability.
- Enhanced Challonge client credentials composable for consistent API calls.
- Streamlined OAuth composable for improved logging.
- Refactored main.js for better readability in session initialization.
- Improved Challonge v2.1 service error handling for better clarity.
- Cleaned up API client utility for improved readability.
- Enhanced ApiKeyManager.vue for better text formatting.
- Refactored ChallongeTest.vue for improved readability in composable usage.

code/websites/pokedex.online/server/middleware/csrf.js

@@ -47,16 +47,22 @@ export function csrfMiddleware(options = {}) {
     // current '/' path). cookie-parser will pick one value, but the browser may
     // send both. Accept if the header matches ANY provided cookie value.
     const rawHeader = req.headers?.cookie || '';
-    const rawValues = getCookieValuesFromHeader(rawHeader, cookieName).map(v => {
-      try {
-        return decodeURIComponent(v);
-      } catch {
-        return v;
+    const rawValues = getCookieValuesFromHeader(rawHeader, cookieName).map(
+      v => {
+        try {
+          return decodeURIComponent(v);
+        } catch {
+          return v;
+        }
       }
-    });
+    );
     const anyMatch = csrfHeader && rawValues.includes(csrfHeader);
 
-    if (!csrfHeader || (!csrfCookie && !anyMatch) || (csrfCookie !== csrfHeader && !anyMatch)) {
+    if (
+      !csrfHeader ||
+      (!csrfCookie && !anyMatch) ||
+      (csrfCookie !== csrfHeader && !anyMatch)
+    ) {
       return res.status(403).json({
         error: 'CSRF validation failed',
         code: 'CSRF_FAILED'