fix: Refactor event grid topic configuration for simplified identity handling

[Vamshi-Microsoft]

Purpose

This pull request refactors the v2/infra/main.bicep file to improve code readability and maintainability by consistently applying multi-line formatting to complex expressions and parameters, especially for conditional assignments and resource properties. It also comments out/deactivates certain Event Grid system topic role assignments and delivery identity settings, likely as part of a configuration or deployment change.

Key changes include:

Code formatting and readability improvements:

• Reformatted conditional assignments and array/object literals throughout the file to use multi-line formatting, making the logic clearer and easier to maintain. This affects conditionals for resource properties, variable assignments, and module parameters. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19]

Event Grid system topic and role assignment adjustments:

• Commented out the managedIdentities property and the deliveryWithResourceIdentity block in the eventGridSystemTopic module, switching to direct destination configuration for Storage Queue delivery. This may reflect a change in authentication or deployment strategy. [1] [2]
• Commented out the eventGridQueueSenderRole resource assignment, possibly deactivating an explicit role assignment for the Event Grid system topic's managed identity.

Consistent variable assignment style:

• Updated several variable assignments (such as effectiveOpenAiEndpoint, effectiveSearchName, effectiveSearchEndpoint, effectiveStorageBlobEndpoint, effectiveCosmosName, and effectiveCosmosEndpoint) to use a multi-line, ternary-style format for improved clarity. [1] [2] [3] [4]

These changes do not alter the core logic or functionality but make the infrastructure codebase easier to read and maintain, and reflect some configuration changes around Event Grid integration.

Does this introduce a breaking change?

• Yes
• No

How to Test

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cd [repo-name]
git checkout [branch-name]
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