fix: Gitea Traefik routing and connection pool optimization

- Remove middleware reference from Gitea Traefik labels (caused routing issues)
- Optimize Gitea connection pool settings (MAX_IDLE_CONNS=30, authentication_timeout=180s)
- Add explicit service reference in Traefik labels
- Fix intermittent 504 timeouts by improving PostgreSQL connection handling

Fixes Gitea unreachability via git.michaelschiemer.de

resources/js/modules/cache-manager/index.js

@@ -0,0 +1,96 @@
+/**
+ * Cache Manager Module
+ * 
+ * Provides intelligent caching for API responses and computed values.
+ * 
+ * Usage:
+ * - Add data-module="cache-manager" to enable global cache manager
+ * - Or import and use directly: import { CacheManager } from './modules/cache-manager/index.js'
+ * 
+ * Features:
+ * - Memory cache
+ * - IndexedDB cache
+ * - Cache invalidation strategies
+ * - Cache warming
+ * - Cache analytics
+ * - Integration with RequestDeduplicator
+ */
+
+import { Logger } from '../../core/logger.js';
+import { CacheManager, CacheStrategy } from './CacheManager.js';
+import { getStrategyForUseCase } from './CacheStrategy.js';
+
+const CacheManagerModule = {
+    name: 'cache-manager',
+    cacheManager: null,
+    
+    init(config = {}, state = null) {
+        Logger.info('[CacheManagerModule] Module initialized');
+        
+        // Create cache manager
+        this.cacheManager = CacheManager.create(config);
+        
+        // Expose globally for easy access
+        if (typeof window !== 'undefined') {
+            window.CacheManager = this.cacheManager;
+            window.CacheStrategy = CacheStrategy;
+        }
+        
+        return this;
+    },
+    
+    /**
+     * Get cache manager instance
+     */
+    getCacheManager() {
+        return this.cacheManager || CacheManager.create();
+    },
+    
+    /**
+     * Get value from cache
+     */
+    async get(key, options = {}) {
+        const cache = this.getCacheManager();
+        return await cache.get(key, options);
+    },
+    
+    /**
+     * Set value in cache
+     */
+    async set(key, value, options = {}) {
+        const cache = this.getCacheManager();
+        return await cache.set(key, value, options);
+    },
+    
+    /**
+     * Get or compute value
+     */
+    async getOrSet(key, computeFn, options = {}) {
+        const cache = this.getCacheManager();
+        return await cache.getOrSet(key, computeFn, options);
+    },
+    
+    destroy() {
+        if (this.cacheManager) {
+            this.cacheManager.destroy();
+            this.cacheManager = null;
+        }
+        
+        if (typeof window !== 'undefined') {
+            delete window.CacheManager;
+            delete window.CacheStrategy;
+        }
+        
+        Logger.info('[CacheManagerModule] Module destroyed');
+    }
+};
+
+// Export for direct usage
+export { CacheManager, CacheStrategy, getStrategyForUseCase };
+
+// Export as default for module system
+export default CacheManagerModule;
+
+// Export init function for module system
+export const init = CacheManagerModule.init.bind(CacheManagerModule);
+