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.

client/src/lib/gamification.ts

@@ -1,47 +1 @@
-export const LEVEL_THRESHOLDS = [
-    0,      // Level 1: 0-99
-    100,    // Level 2: 100-249
-    250,    // Level 3: 250-499
-    500,    // Level 4: 500-999
-    1000,   // Level 5: 1000-1999
-    2000,   // Level 6: 2000-3499
-    3500,   // Level 7: 3500-4999
-    5000,   // Level 8: 5000-7499
-    7500,   // Level 9: 7500-9999
-    10000   // Level 10: 10000+
-];
-
-export function getLevelFromXP(xp: number): number {
-    for (let i = LEVEL_THRESHOLDS.length - 1; i >= 0; i--) {
-        if (xp >= LEVEL_THRESHOLDS[i]) {
-            return i + 1;
-        }
-    }
-    return 1;
-}
-
-export function getNextLevelXP(level: number): number {
-    if (level >= LEVEL_THRESHOLDS.length) {
-        return LEVEL_THRESHOLDS[LEVEL_THRESHOLDS.length - 1] * 1.5; // Scale indefinitely
-    }
-    return LEVEL_THRESHOLDS[level];
-}
-
-export function getLevelProgress(xp: number): number {
-    const currentLevel = getLevelFromXP(xp);
-    const currentLevelStart = LEVEL_THRESHOLDS[currentLevel - 1];
-    const nextLevelStart = getNextLevelXP(currentLevel);
-
-    if (xp >= nextLevelStart) return 100;
-
-    const progress = ((xp - currentLevelStart) / (nextLevelStart - currentLevelStart)) * 100;
-    return Math.min(100, Math.max(0, progress));
-}
-
-export function getRankKey(level: number): string {
-    if (level >= 50) return 'master';
-    if (level >= 20) return 'architect';
-    if (level >= 10) return 'planner';
-    if (level >= 5) return 'builder';
-    return 'novice';
-}
+export * from '@shared/gamification';