feat: added web search rate limits

[jcabrero]

This PR adds a new way of dealing with rate limits in a generic way that allows us to add more and new rate limits to the database without necessarily creating a new DB column always.

[Copilot]

Pull Request Overview

This PR implements a generic rate limiting system to replace the previous fixed database schema approach. The changes introduce a flexible JSON-based rate limits configuration that allows for easy addition of new rate limit types without requiring database schema changes.

• Replaces individual rate limit columns with a single JSON column for flexible rate limit storage
• Adds web search rate limiting functionality with time-based and for-good limits
• Introduces comprehensive integration tests for the new rate limiting system

Reviewed Changes

Copilot reviewed 20 out of 21 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/unit/nilai_api/test_rate_limiting.py	Updates test fixtures to use new RateLimits model structure
tests/unit/nilai_api/routers/test_private.py	Adds rate_limits mock data to user fixtures
tests/unit/nilai_api/routers/test_nildb_endpoints.py	Updates mock users to include rate_limits configuration
tests/unit/nilai_api/auth/test_strategies.py	Updates authentication strategy tests with new rate limits structure
tests/unit/nilai_api/auth/test_auth.py	Adds rate limits to mock user models
tests/integration/nilai_api/test_users_db_integration.py	Comprehensive integration tests for JSON-based rate limits CRUD operations
tests/integration/nilai_api/init.py	Package initialization for integration tests
tests/integration/conftest.py	Test configuration and fixtures for database integration tests
tests/integration/init.py	Package initialization file
pyproject.toml	Updates testcontainers dependency version
nilai-api/src/nilai_api/routers/private.py	Adds web_search_calls parameter to query logging
nilai-api/src/nilai_api/rate_limiting.py	Refactors rate limiting to use new RateLimits model and adds web search rate limiting
nilai-api/src/nilai_api/db/users.py	Introduces RateLimits model and replaces individual rate limit columns with JSON storage
nilai-api/src/nilai_api/db/logs.py	Adds web_search_calls tracking to query logs
nilai-api/src/nilai_api/config/rate_limiting.py	Updates rate limiting configuration structure
nilai-api/src/nilai_api/config/config.yaml	Adds for-good rate limit configuration options
nilai-api/src/nilai_api/commands/add_user.py	Updates user creation command to use new rate limits structure
nilai-api/examples/users.py	Updates example to include web_search_calls parameter
nilai-api/alembic/versions/9ddf28cf6b6f_feat_new_user_config_and_web_rate_limits.py	Database migration to implement the new rate limits schema
.github/workflows/cicd.yml	Adds integration test execution to CI/CD pipeline

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