Add Sec Authorization api

[IsaacDSC]

This pull request introduces HTTP Basic Authentication to the API server, requiring clients to provide credentials for all endpoints. The authentication credentials are now configurable via environment variables, and example requests have been updated to include the required Authorization header. Additionally, utility functions and tests were added for managing authenticated user context, and a small scheduling change was made in publisher event data.

[Copilot]

Pull Request Overview

This pull request introduces HTTP Basic Authentication to the API server to secure all endpoints with credential validation. The authentication system is configurable through environment variables and includes comprehensive testing.

Key Changes:

• Added Basic Authentication middleware with username/password validation using constant-time comparison
• Implemented context utilities for storing and retrieving authenticated user information
• Updated all API endpoint examples to include required Authorization headers

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pkg/auth/basic.go	Core Basic Auth implementation with credential validation, parsing, and middleware
pkg/auth/basic_test.go	Comprehensive test suite covering authentication scenarios and edge cases
pkg/auth/ctx.go	Context utilities for managing authenticated user data
pkg/auth/ctx_test.go	Tests for context management functions
cmd/setup/httpserver.go	Integration of auth middleware into HTTP server setup
internal/cfg/env.go	Added PROJECT_ID and SECRET_KEY configuration fields
internal/interstore/postgres_store.go	Added GetServiceName method for event service lookup
deployment/app-pgsql/docker-compose.yaml	Environment variables for authentication credentials
example/example.md	Updated example requests with Authorization headers
example/publisher_data.json	Changed schedule timing from 2m to 100ms
go.mod	Added JWT library dependency

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[Copilot]

Pull Request Overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

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