[Docs] Document Local Development Workflow

[Abd-Standard]

Description

Create a dedicated guide explaining how contributors can set up NotifyChain locally for development and testing.

Tasks
List required dependencies.
Explain the project structure.
Include setup commands.
Document how to run tests and linting.

Acceptance Criteria
New contributors can complete setup using the guide alone.
Documentation is added to the repository.
Instructions are verified on a clean environment.

[Menjay7]

Hi! I came across this issue and would love to work on it. I have experience with similar tasks and I'm confident I can investigate, implement a clean solution, and thoroughly test it before submitting a PR. If the issue is still open, I would appreciate it if you could assign it to me. Thank you!

[jaynomyaro]

Hi! I’m a full-stack developer with a strong blockchain background. I’d love to handle this issue and can deliver a clean, reliable solution. Kindly assign it to me.

[canicefavour]

I can handle this one for you Boss.

[grantfox-oss]

🦊 GrantFox — @canicefavour has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #42)
2. Your PR will be reviewed by the Core-Foundry maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@canicefavour's PR #77 was approved and merged by @Abd-Standard.

🏆 @canicefavour: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (48 total points). Track your full progress on GrantFox.

👏 Great work, @canicefavour! Keep contributing to Core-Foundry.