fix(tools): implemented proper bcrypt generator (#13)

[datta-sayak]

Description

• Replaced a placeholder hashing implementation in BcryptGenerator with the bcryptjs library.
• Switched from a mock SHA-256 logic to standard bcrypt salt and hash generation.
• Updated verifyHash to use bcrypt.compare for accurate validation.

• Fixes [FEATURE] Implement bcrypt library for password hashing #13

Dependencies

Added bcryptjs and its corresponding TypeScript types.

Mentions

@rishima17

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If changes are made in the code:

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[SyedFahad7]

Thanks for the implementation, this looks solid.

[github-actions]

🎉 This PR is included in version 1.4.0-develop.2 🎉

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