Refresh README for new matcher operators and faster onboarding

[Copilot]

README now documents the newly added matcher operators and is reorganized to be easier to scan for common usage. The update focuses on first-contact clarity while preserving links to deeper docs.

• Operator coverage update

  • Expanded matcher documentation to include array-containment operators: $has and $hasAny.
  • Updated feature summary language so supported operator capabilities are visible in the top-level feature table.

• Entry-point readability

  • Introduced a clearer Quick Start anchor for immediate usage.
  • Added Common Usage at a Glance to surface the primary workflows (commit, getEventStream, query + DCB condition, fromStreams, createConsumer) without requiring full-doc navigation.

• Matcher semantics clarification

  • Clarified that scalar operators can be combined with AND semantics on a field.
  • Clarified that $has / $hasAny are array-containment operators and should be used standalone per field.

{ payload: { amount: { $gte: 100, $lt: 1000 } } }
{ payload: { tags: { $has: 'featured' } } }
{ payload: { tags: { $hasAny: ['featured', 'priority'] } } }

[coveralls]

coverage: 98.299%. remained the same — copilot/update-readme-with-new-operators into main

[albe]

@copilot bump the package version to 1.4.0 in package.json and package-lock

[Copilot]

@copilot bump the package version to 1.4.0 in package.json and package-lock

Done in 753597c: bumped the version to 1.4.0 in both package.json and package-lock.json.