fix: exp issues fix

[Ravikirana-Microsoft]

Purpose

This pull request introduces several improvements and fixes across documentation and infrastructure code, primarily focusing on standardizing environment variable names for AI project resource IDs, enhancing security and logging configurations, and updating documentation to reflect these changes. It also adds troubleshooting guidance for a common Azure deployment error.

Environment Variable Standardization and Documentation Updates:

• Standardized the environment variable for reusing an existing AI Foundry Project from AZURE_ENV_FOUNDRY_PROJECT_ID to AZURE_EXISTING_AI_PROJECT_RESOURCE_ID throughout documentation and infrastructure parameter files, ensuring consistency and reducing potential deployment confusion. [1] [2] [3] [4]
• Updated related documentation to use the new variable name and clarified usage instructions. [1] [2]

Security and Logging Enhancements:

• Increased the default dailyQuotaGb for Log Analytics Workspace to 150 GB when redundancy is enabled, aligning with WAF recommendations for higher workloads.
• Enabled host-based encryption (encryptionAtHost: true) for virtual machines to improve data security at rest.
• Added Windows Security Audit event log collection for VMs, specifically capturing successful and failed logon events (Event IDs 4624, 4625) for improved security monitoring.
• Enabled end-to-end encryption for web apps by setting e2eEncryptionEnabled: true in both the main and module Bicep files. [1] [2]
• Added parameters for customer-managed keys and a list of allowed FQDNs in the WAF parameters file, supporting enhanced security and network control.

Troubleshooting Documentation:

• Added a detailed troubleshooting section for the EncryptionAtHostFeatureNotEnabled error, providing step-by-step guidance and references for resolving Azure host encryption deployment issues.

Does this introduce a breaking change?

• Yes
• No

How to Test

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cd [repo-name]
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Other Information

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🎉 This PR is included in version 2.2.0 🎉

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