chore: use knowledge-dev.mongodb.com in stages before production COMPASS-9817

[lerouxb]

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[Copilot]

Pull Request Overview

This PR updates the assistant API base URL configuration to use the new knowledge-dev.mongodb.com domain instead of knowledge.staging.corp.mongodb.com for non-production environments. The change standardizes the URL format across different deployment stages while maintaining the existing production configuration.

• Updated CSP configuration to allow the new knowledge-dev.mongodb.com domain
• Replaced knowledge.staging.corp.mongodb.com with knowledge-dev.mongodb.com across all non-production environment configurations

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/compass/src/app/utils/csp.ts	Added knowledge-dev.mongodb.com to the allowed CSP connect-src domains
packages/atlas-service/src/util.ts	Updated assistantApiBaseUrl from knowledge.staging.corp.mongodb.com to knowledge-dev.mongodb.com for all non-production environments

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