Add SyncedInstance for multi-instance content synchronization, export it, add tests, and expand README
- Introduce SyncedInstance class (ts/classes.syncedinstance.ts) to synchronize tags, posts and pages across Ghost instances with mapping and history support. New APIs: syncTags, syncPosts, syncPages, syncAll, getSyncStatus, clearSyncHistory, clearMappings.
- Export SyncedInstance from the package entry point (ts/index.ts).
- Add integration tests for SyncedInstance (test/test.syncedinstance.node.ts).
- Expand README (readme.md) with Quick Start, detailed Multi-Instance Synchronization docs, examples and updated API reference.
Remove Settings and Webhooks browse/read APIs, remove noisy console.error logs, and update tests/docs
- Removed Settings API methods from Ghost: getSettings and updateSettings (breaking change).
- Removed Webhooks browsing/reading methods from Ghost: getWebhooks and getWebhookById. createWebhook, updateWebhook and deleteWebhook remain.
- Removed test/test.settings.node.ts and simplified test/test.webhook.node.ts to only exercise create/update/delete webhook flows without feature-availability guarding.
- Stripped console.error debug logging across multiple classes (Author, Ghost, Member, Page, Post, Tag) to reduce noisy runtime output.
- Updated README: removed 'Site Settings' section and clarified webhook API limitations supported by the underlying Ghost Admin SDK.