Document code reasoning

Add clear, concise comments that explain the “why” behind complex logic, non-obvious decisions, and implicit behaviors. Focus on documenting:

1. Algorithmic choices and control flow - Explain why loops are broken, conditions are checked, or specific approaches are used.

// Break if the next page is null
// Break the loop if the next page variable is null, indicating no more pages to process.

1. Parameter handling details - Document implicit conversions, default values, and edge cases.

// The premiumPageBlobAccessTier parameter specifies the access tier for the page blob.
// If null, the REST API will apply the default tier or handle it gracefully.

1. Version-specific logic or format handling - Explain format parsing, version checks, or compatibility code.

// This method checks if the format string in options.Format ends with the "|v3" suffix.
// The "|v3" suffix indicates that the ManagedServiceIdentity format is version 3.
// If the suffix is present, it is removed, and the base format is returned.

1. Complex operations or type conversions - Make non-obvious operations clear to future maintainers.

// Convert ShareProtocols (multi-valued) to ShareProtocol (single-valued).
// If effectiveProtocol is ShareProtocols.Smb, map to ShareProtocol.Smb.
// Otherwise, default to ShareProtocol.Nfs.

Comments should benefit future maintainers by providing context that isn’t immediately obvious from the code itself. When complex code can’t be simplified, comprehensive documentation becomes essential for long-term maintainability.