Add lambdas names-filter selector cases to checkSelectors:
- names: ['start'] returns the matching lambda with resolved fields
- names: ['missing'] returns an empty page
Add a chunks no-match case:
- names: ['Xyzz'] returns an empty page for an absent chunk tag
Also clarify in docs/erlang-beam.md what names selects for each
collection: the four-character IFF tag for chunks, the resolved
function name (never null) for lambdas, and the decoded atom name
string for atoms.
Co-authored-by: Saiyam Jain <saiyam@example.com>
