Implement name and description discovery over nats and fastapi

[kumaranvpl]

Description

Fixes #338, #339

Type of change

• Documentation (typos, code examples, or any documentation updates)
• Bug fix (a non-breaking change that resolves an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a fix or feature that would disrupt existing functionality)
• This change requires a documentation update

Checklist

• I have conducted a self-review of my own code
• I have made the necessary changes to the documentation
• My changes do not generate any new warnings
• I have added tests to validate the effectiveness of my fix or the functionality of my new feature
• I have included code examples to illustrate the modifications

[codecov]

Codecov Report

Attention: Patch coverage is 22.72727% with 34 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
fastagency/adapters/nats/base.py	22.58%	24 Missing ⚠️
fastagency/adapters/fastapi/base.py	23.07%	10 Missing ⚠️

Files with missing lines	Coverage Δ
fastagency/adapters/fastapi/base.py	19.58% <23.07%> (+1.80%)	⬆️
fastagency/adapters/nats/base.py	21.14% <22.58%> (+0.59%)	⬆️