Introduce Quest Difficulty Tiers

[Mkalbani]

Description

All quests currently have the same reward structure regardless of complexity or challenge level.

Expected Behavior

Quests should have difficulty tiers that influence reward multipliers.

Proposed Changes

enum Difficulty { Easy, Medium, Hard, Legendary }

• Add Difficulty difficulty to the quest struct
• Apply reward multipliers: Easy 1x, Medium 1.5x, Hard 2x, Legendary 3x

Acceptance Criteria

• Difficulty is set at quest creation
• Reward payout respects the difficulty multiplier
• Tests cover all four difficulty levels

[Lynndabel]

@Lynndabel has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello maintainer, i have gone through the task description and will like to work on this please. ETA: 6hours

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[JoaquinSkorg]

@JoaquinSkorg has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello maintainer, kindly assign this issue go me. I've gone through it's description and I'm confident I'll deliver within a short time

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[nafiuishaaq]

@nafiuishaaq has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Let me professionally implement this task as soon as possible

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[drips-wave]

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[drips-wave]

This issue has been completed by @nafiuishaaq as part of the Stellar Wave Program's 5th Wave 🥳

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