0.2.0

ClavisDB 0.2.0 adds a visual Schema Designer with interactive ER diagrams and
built-in query profiling, so you can understand both the shape of your data
and how your queries actually run.

Added

• Schema Designer — a Supabase-style, interactive ER diagram for any database.
  Open it from the workspace header, the database row in the schema sidebar, or
  File → Schema Designer. Pan, zoom, drag tables, fit-to-view and a minimap
  are all built in, and node positions are remembered per connection.
• Real-time diagrams — the diagram is introspected live and updates instantly
  when you change the schema in-app (adding/dropping columns, indexes or foreign
  keys), with a manual Refresh always available.
• Relationship explorer — click any relationship line to inspect its foreign
  key: source → referenced columns, ON DELETE / ON UPDATE actions, and index
  coverage (columns without a supporting index are flagged). Click a table to see
  its outgoing and incoming relationships and its indexes.
• Schema documentation — add descriptions to tables and individual columns.
  Descriptions are saved on your device and persist across sessions, and existing
  native database comments are shown as placeholders.
• Query profiling — an Explain button in the query editor shows the
  engine's execution plan alongside execution timing. An Analyze action
  (available for read queries) runs EXPLAIN ANALYZE to capture real row counts
  and timings. Plans are engine-aware across MySQL/MariaDB, PostgreSQL and SQLite.

Changed

• The schema sidebar's database rows now expose a quick action to open the
  database directly in the Schema Designer.

Fixed

• pnpm dev could fail to resolve workspace database adapters on a fresh checkout
  because dependency packages weren't built first; the dev pipeline now builds
  workspace dependencies before starting.