v0.8.4

Added

• Tools ▸ Data Transfer. A new menu bar entry (also in the command palette) opens a
  dialog to copy tables from one saved connection straight to another — e.g. a full copy
  of a database from a remote host to localhost, or between two engines (MySQL,
  PostgreSQL, ClickHouse, SQLite, SQL Anywhere). Pick a Source and Target
  connection, then tick individual tables or Select all; options let you
  (re)create the table structure, copy the data, and drop or empty the target first.
  Runs with a live per-table progress readout and a final ✓/✗ summary per table.
  Uses the same saved connections as the database panel — nothing new to configure.