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/oauth-proxy.js

@@ -60,7 +60,9 @@ app.use(
 );
 
 // Encrypted per-session provider token store
-const tokenStore = createOAuthTokenStore({ sessionSecret: config.session.secret });
+const tokenStore = createOAuthTokenStore({
+  sessionSecret: config.session.secret
+});
 
 // Mount API routes (nginx strips /api/ prefix before forwarding)
 app.use('/gamemaster', gamemasterRouter);