[Release] 1.7.0

[stevensJourney]

Release for:

• Update Kotlin SDK to 1.7.0 #81
• Ability to Delete SQLite files on Close #89
• feat: Add PowerSyncDataConvertible protocol #84
• Remove unnecessary Task's in actor #88

• Update Kotlin SDK to 1.7.0.
• Add close(deleteDatabase:) method to PowerSyncDatabaseProtocol for deleting SQLite database files when closing the database. This includes the main database file and all WAL mode files (.wal, .shm, .journal). Files that don't exist are ignored, but an error is thrown if a file exists but cannot be deleted.

// Close the database and delete all SQLite files
try await database.close(deleteDatabase: true)

// Close the database without deleting files (default behavior)
try await database.close(deleteDatabase: false)
// or simply
try await database.close()

• Add PowerSyncDataTypeConvertible protocol for casting query parameters to SQLite supported types.
• [Internal] Removed unnecessary Task creation in Attachment helper FileManagerStorageAdapter.