feat: enhance audit logging, add MCP settings, and production docker setup

- Implemented comprehensive audit logging for Tasks, Users, Settings, Goals, Labels, AI Chat, and Rewards.
- Added Admin UI for MCP Server settings and Audit Logs.
- Created docker-compose-production.yml with Traefik configuration.
- Fixed backend bugs (missing storage methods, route closure).
- Added Audit Logging Guidelines.

server/gamification.ts

@@ -0,0 +1,68 @@
+import { IStorage } from "./storage";
+import { User, InsertXpEvent } from "@shared/schema";
+import { getLevelFromXP } from "@shared/gamification";
+
+// Constants for XP Actions
+export const XP_RULES = {
+    CREATE_TASK: 10,
+    CREATE_SUBTASK: 5,
+    UPDATE_TASK: 2, // Small amount for tweaking/updating
+    COMPLETE_TASK: 50,
+    COMPLETE_TASK_LATE: 20, // Reduced for overdue
+    AI_ACTION: 5, // For using AI features
+    LOGIN_STREAK: 100
+};
+
+export class GamificationService {
+    private storage: IStorage;
+
+    constructor(storage: IStorage) {
+        this.storage = storage;
+    }
+
+    async awardXP(userId: string, source: string, amount?: number, description?: string): Promise<{ user: User, levelUp: boolean, oldLevel: number, newLevel: number }> {
+        const user = await this.storage.getUser(userId);
+        if (!user) throw new Error("User not found");
+
+        const xpAmount = amount || this.getXPForSource(source);
+        const newTotalXP = (user.xp || 0) + xpAmount;
+
+        // Check for level up
+        const oldLevel = getLevelFromXP(user.xp || 0);
+        const newLevel = getLevelFromXP(newTotalXP);
+        const levelUp = newLevel > oldLevel;
+
+        // Update User
+        await this.storage.updateUserXP(userId, newTotalXP);
+
+        // Log Event
+        await this.storage.logXpEvent({
+            userId,
+            amount: xpAmount,
+            source,
+        });
+
+        // If Level Up, we could log a special event or notification here?
+
+        const updatedUser = await this.storage.getUser(userId);
+        return {
+            user: updatedUser!,
+            levelUp,
+            oldLevel,
+            newLevel
+        };
+    }
+
+    private getXPForSource(source: string): number {
+        switch (source) {
+            case 'create_task': return XP_RULES.CREATE_TASK;
+            case 'create_subtask': return XP_RULES.CREATE_SUBTASK;
+            case 'update_task': return XP_RULES.UPDATE_TASK;
+            case 'complete_task': return XP_RULES.COMPLETE_TASK;
+            case 'complete_task_late': return XP_RULES.COMPLETE_TASK_LATE;
+            case 'ai_action': return XP_RULES.AI_ACTION;
+            case 'daily_streak': return XP_RULES.LOGIN_STREAK;
+            default: return 0;
+        }
+    }
+}