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l0ng-ai 575749f2ac feat(database): Add query plans, history, data tools and schema objects (#63)
New query, data and schema tools for the Database feature (SQLite, PostgreSQL, MySQL).

## Query console
- **Explain Plan** tab: SQLite `EXPLAIN QUERY PLAN`, PostgreSQL `EXPLAIN (FORMAT JSON)`, MySQL `EXPLAIN`, parsed in `ide-db::plan` into an operation tree (Full Scan / Index Scan / Group By / Order By …) under a statement root, with a properties panel.
- **Query history**: `ide-db::history` keeps executed statements per project and source in `db-history.json` (deduplicated, newest first, 500 max). The Browse Query History dialog has search, a highlighted preview, Paste and Delete.
- Output reports `(execution: X ms, fetching: Y ms)`.

## Results and table editor
- Local column filter (value list with counts) and local sort.
- Record / Value / Aggregates side panel.
- Chart view (bar / line) with X / Y / aggregation settings.
- Export Data dialog: extractor, Transpose, headers, preview, file or clipboard. An extractor drop-down sits on the data toolbars.
- Import Data from a CSV / TSV file.
- Table editor gets a WHERE | ORDER BY row. Column headers fit their names, with filter and sort indicators. Whole SQLite REALs display as `3108`, not `3108.0`.

## Database tree
- Triggers under tables. Routines, sequences and materialized views under schemas, with DDL, Quick Documentation and Drop.
- Data source options: object filter, show template databases, single database mode (PostgreSQL).
- New ▸ Import from Clipboard (connection URLs).

## IPC
New commands: `db_schema_objects`, `db_object_ddl`, `db_explain`, `db_history`, `db_remove_history`. Bindings are regenerated.

## Testing
- `cargo test -p ide-db`: plan parsing, history store, trigger listing and DDL, explain without executing.
- `cargo clippy -p ide-db -p openidea --all-targets -- -D warnings` is clean.
- `pnpm typecheck` and eslint pass. `pnpm vitest run src/features/database src/ui`: 226 passed.
- Checked in the running app against a SQLite database:
  - tree with triggers
  - result grid, local filter, side panel
  - chart
  - Explain Plan
  - history dialog
  - Export Data dialog
  - table editor ORDER BY
  - CSV import




Merge follow-up: grouped the new `--chart-series` token under a section comment and added it to the theme plugin template (theme.test.ts on main), regenerated docs/plugins/themes.md. Re-verified after merging main on macOS with a SQLite source: query + result grid with filter/sort headers, Explain Plan tab (Full Scan / Index Scan / Group By / Order By), Query History dialog; `cargo nextest run -p ide-db` 45 passed, bindings unchanged after regeneration.

https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
2026-10-27 13:31:29 +08:00
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