feat: add BroadcastClickedLinksAsync() method

[dielduarte]

Adds GET /broadcasts/{id}/clicked-links — paginated list of a broadcast's clicked links (url, clicks, unique_clicks).

Spec: resend/resend-openapi#95
Reference implementation: resend/resend-node#1077

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Summary by cubic

Adds BroadcastClickedLinksAsync(), GET /broadcasts/{id}/clicked-links, and a broadcast clicked-links CLI command to fetch a broadcast’s per-link click aggregates with cursor pagination. Previously, clients couldn’t retrieve per-link clicks; now they can read url, clicks, and unique_clicks without affecting delivery or tracking.

• Introduces BroadcastClickedLink; its id is an opaque cursor for pagination, not a stable identifier.
• Supports PaginatedQuery (limit, before, after); returns PaginatedResult<BroadcastClickedLink>.
• CLI: resend broadcast clicked-links <broadcastId> [-l|--limit N] [-b|--before CURSOR] [-a|--after CURSOR] [--json]; escapes console markup in URLs for safe rendering.
• Adds tests for default and paginated queries; mock API returns sample data for shape validation.
• No changes to existing broadcast endpoints; read-only addition.
• Required: If you implement IResend, add BroadcastClickedLinksAsync() to your implementation.

^{Written for commit bf84407. Summary will update on new commits.}

[klotty]

No issues found across 5 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Auto-approved: Adds the BroadcastClickedLinksAsync method to retrieve click statistics for a broadcast. The change includes the data model, client implementation, and unit tests, following established SDK patterns.

Re-trigger cubic</sub>

[cubic-dev-ai]

All reported issues were addressed across 2 files (changes from recent commits).

<sub>Reply with feedback, questions, or to request a fix.

Re-trigger cubic</sub>

Dismissed because Cubic found issues in a newer review.

[cubic-dev-ai]

0 issues found across 1 file (changes from recent commits).

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Requires human review: Adds broadcast click tracking to the SDK and CLI. This introduces a breaking change to the IResend interface and new public API surface area that requires human architectural sign-off.

Re-trigger cubic</sub>