Standardize Drush command aliases to use consistent `ad:` prefix pattern

Problem/Motivation

The current Drush command aliases in the Acquia DAM module are inconsistent and difficult to use:

1. Inconsistent naming patterns: Some aliases use hyphens (ad-qia), others are concatenated (adqua, adqil), and one has no prefix at all (das)
2. Poor discoverability: Concatenated aliases like adqil, adpuq, and adramt are hard to read and don't clearly indicate they belong to Acquia DAM
3. No namespace preservation: The das alias for download-assets completely loses the Acquia DAM context
4. Not intuitive: Users cannot easily guess or remember the relationship between full commands and their aliases

Current aliases:

AssetImportDrushCommands (submodule)

• acquia-dam:queue-import-assets → ad-qia (has prefix, uses hyphen)
• acquia-dam:process-import-queue → ad-piq (has prefix, uses hyphen)
• acquia-dam:import-assets → ad-ia (has prefix, uses hyphen)

DownloadAssetsDrushCommands

• acquia-dam:download-assets → das (no prefix!)

AssetUpdateDrushCommands

• acquia-dam:queue-update-assets → adqua (concatenated, hard to parse)
• acquia-dam:process-update-queue → adpuq (concatenated, hard to parse)
• acquia-dam:update-assets → adua (concatenated, hard to parse)
• acquia-dam:resolve-asset-media-type → adramt (concatenated, hard to parse)

IntegrationLinksDrushCommands

• acquia-dam:queue-integration-links → adqil (concatenated, hard to parse)
• acquia-dam:process-integration-links-queue → adpilq (concatenated, hard to parse)
• acquia-dam:register-integration-links → adril (concatenated, hard to parse)

This inconsistency makes it difficult for users to:

• Discover available commands using tab completion
• Remember which alias corresponds to which command
• Identify that commands belong to the Acquia DAM module

Proposed resolution

Standardize all Drush command aliases to use the ad: pattern with colon separators:
Benefits:

• Consistency: All aliases follow the same pattern
• Readability: Colons provide visual separation making aliases easier to parse
• Discoverability: Users can type drush ad: to see all Acquia DAM commands
• Namespace preservation: The ad: prefix clearly indicates "Acquia DAM"
• Follows best practices: Mirrors the structure of core Drush commands (e.g., config:export → cex, cache:rebuild → cr)

Proposed new aliases (with backward compatibility):

Implementation approach:

• Add new ad:* aliases as the primary aliases in all Drush command files
• Keep existing aliases for backward compatibility (to be deprecated in a future major version)
• Update documentation to reference the new alias pattern

Files to modify:

• modules/acquiadam_asset_import/src/Drush/Commands/AssetImportDrushCommands.php
• src/Drush/Commands/AssetUpdateDrushCommands.php
• src/Drush/Commands/DownloadAssetsDrushCommands.php
• src/Drush/Commands/IntegrationLinksDrushCommands.php

Example change for one command:
// Before
#[CLI\Command(name: 'acquia-dam:download-assets', aliases: ['das'])]

// After
#[CLI\Command(name: 'acquia-dam:download-assets', aliases: ['ad:das', 'das'])]