chore(compass-indexes): align default index names with cloud COMPASS-9257

[Copilot]

Vector search indexes in Atlas use vector_index as the default name, while Compass uses default. This creates inconsistency between the two interfaces.

Changes

• Modified onChangeSearchIndexType callback to auto-update index names when switching search types:

  • default → vector_index when switching to vector search
  • vector_index → default when switching to regular search
  • Custom names are preserved (only default names are swapped)

• Updated test expectations for vector search default name and added coverage for:

  • Bidirectional name switching with defaults
  • Custom name preservation during type changes

Implementation

const onChangeSearchIndexType = useCallback(
  ({ target: { value } }: React.ChangeEvent<HTMLInputElement>) => {
    setSearchIndexType(value as SearchIndexType);

    if (value === 'vectorSearch') {
      setIndexDefinition(ATLAS_VECTOR_SEARCH_TEMPLATE.snippet);
      onChangeTemplate(ATLAS_VECTOR_SEARCH_TEMPLATE);
      
      if (indexName === 'default') {
        setIndexName('vector_index');
      }
    } else {
      setIndexDefinition(ATLAS_SEARCH_TEMPLATES[0].snippet);
      onChangeTemplate(ATLAS_SEARCH_TEMPLATES[0]);
      
      if (indexName === 'vector_index') {
        setIndexName('default');
      }
    }
  },
  [setSearchIndexType, onChangeTemplate, setIndexDefinition, setIndexName, indexName]
);

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• jira.mongodb.org
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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