Method checkCredits

frontend/src/lib/api/userService.ts:79–91

(
    model: string,
    estimatedTokens: number
  )

  }

  async checkCredits(
    model: string,
    estimatedTokens: number
  ): Promise<{
    hasEnoughCredits: boolean;
    creditsNeeded: number;
    creditsAvailable: number;
  }> {
    return apiClient.post('/credits/check', {
      model,
      estimatedTokens,
    });
  }

  // Subscription management
  async getCurrentSubscription(): Promise<any> {