DB viewer + query editor enhancements (home-screen-ux-query-editor) (#4)
* feat: add query_history table migration (v5) (Task 1) * feat: add isDestructiveQuery utility (Task 2) * feat: add tabType discriminator and openQueryTab to dbViewerStore (Task 3) * feat: add execute_query command with pagination and query history (Task 4) * feat: add typed wrappers for executeQuery, getQueryHistory, clearQueryHistory (Task 5) * fix: global search bypasses folder scope when filters active (Task 6) * feat: add TagFilterDropdown with checkboxes and empty state (Task 7) * feat: add DbTypeFilterDropdown with checkboxes and clear all (Task 8) * feat: wire TagFilterDropdown/DbTypeFilterDropdown into ActionRow, add inline tag creation (Task 9) * feat: add Name input to GeneralTab for connection editing (Task 10) * feat: add QueryEditor Monaco wrapper with SQL mode and Cmd+Enter (Task 11) * feat: add DestructiveQueryDialog with SQL preview and confirmation (Task 12) * feat: integrate query tabs, Monaco editor, destructive guard into DbViewerScreen (Task 13) * fix: harden moveConnection against race conditions on rapid drags (Task 14) * docs: update AGENTS.md implementation status for Home Screen UX + Query Editor (Task 15) * feat: switch tag filter to OR semantics, add environment filter (F-T16) * feat: add activeEnvironment filter state to uiStore and useFilteredConnections (F-T17) * feat: add environment filter select to Filters dropdown (F-T18) * feat: filter folder cards by tag match or contained connections (F-T19) * fix: keep grid header width to content, border last column * fix: hide select-all checkbox and empty-state when no table open * fix: filter folder cards by any active filter, show global search results (F-T20) * feat: show 'Showing Search Results' breadcrumb with clear button (F-T21) * docs: update README + AGENTS.md for Query Editor, filters, and planned AI integration (BYOK) * feat: refresh indicator with spinning icon and pulse, defer auto-refresh on tab switch * feat: smart default schema selection, refresh schemas on database switch * fix: auto-refresh waits for in-flight refresh to complete before next tick * style: shrink db viewer sidebar nav icons from 20px to 16px * style: shrink db viewer sidebar nav buttons to 32px (8px padding) * style: make Tables panel title xs, regular weight, muted * style: bump Tables panel title back to sm, keep regular weight and muted * feat: export schema diagram as PNG/JPEG/SVG (entire schema or viewport) * chore: lockfile for html-to-image * fix: raise schema visualizer toolbar above legend so export menu isn't hidden * feat: schema export via save dialog, transparent background option, save notification * fix: render nothing in tab bar when no tabs are open * style: reduce tab bar height from 40px to 36px * style: reduce tab bar height to 32px * style: revert tab bar height to 36px * feat: split tab bar with fixed +Query and Changes actions on the right * style: blue play-icon Query button in tab bar * refactor: remove sidebar New Query button (now in tab bar) * style: conditional bottom padding in sidebar toolbar when nothing is below * feat: distinguish table and query tabs with icons * style: tab icons follow active/inactive state, muted colors * feat: query tab toolbar (run/format/dialect badge) + bare transparent editor * style: blue rounded Run Query button in query toolbar * feat: smart platform-aware shortcut tooltip on Run Query (⌘+⏎ / Ctrl+Enter) * style: show only the shortcut in the Run Query tooltip * fix: Cmd+Enter keybinding stale closure; add run pulse to query toolbar; bundle monaco locally (offline) * feat: show placeholder text in empty query editor * feat: SQL autocomplete — keywords + table names from active schema * feat: per-table column autocomplete on 'table.' + docs update * feat: query-variant result toolbar — export/refresh/columns left, smart-unit execution time right * fix: populate execution_time_ms on query results so the toolbar can show time taken * fix: re-measure monaco fonts after async font load to stop cursor drift * feat: resizable + collapsible query results panel * refactor: move results caret onto the resize handle (centered), bottom caret when collapsed * style: thin drag strip with caret on its own centered pill * refactor: remove Queue button from table toolbar (Changes lives in tab bar) * style: changes button becomes bordered rounded icon with count badge * docs: mark tab-bar Changes queue button in AGENTS.md and README
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/**
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* Local Monaco setup — bundles monaco-editor with the app so no CDN is
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* needed and the editor works fully offline.
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*
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* Must be imported once, before any @monaco-editor/react <Editor /> mounts.
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*/
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import * as monaco from "monaco-editor";
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import { loader } from "@monaco-editor/react";
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import EditorWorker from "monaco-editor/editor/editor.worker?worker";
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import { useDbViewerStore } from "../stores/dbViewerStore";
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import { useUiStore } from "../stores/uiStore";
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import {
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buildSqlSuggestions,
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buildColumnSuggestions,
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getColumnsForTable,
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getCachedColumns,
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parseTableRef,
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} from "./sqlCompletion";
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// Use the bundled editor worker (SQL has no dedicated language worker)
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self.MonacoEnvironment = {
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getWorker: () => new EditorWorker(),
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};
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// Hand the already-imported monaco instance to @monaco-editor/react so it
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// skips its CDN download entirely.
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loader.config({ monaco });
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// SQL autocomplete:
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// - after `table.` (or `schema.table.`): suggest that table's columns
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// (fetched lazily via schema introspection and cached per schema)
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// - otherwise: keywords + table names from the active schema
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monaco.languages.registerCompletionItemProvider("sql", {
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provideCompletionItems: (
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model,
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position,
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): monaco.languages.CompletionList | Promise<monaco.languages.CompletionList> => {
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const { tables, currentSchema } = useDbViewerStore.getState();
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const line = model.getLineContent(position.lineNumber);
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const before = line.slice(0, position.column - 1);
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const word = model.getWordUntilPosition(position);
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const range = new monaco.Range(
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position.lineNumber,
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word.startColumn,
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position.lineNumber,
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word.endColumn,
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);
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const withRange = (s: { label: string; insertText: string; kind: string }) => ({
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label: s.label,
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insertText: s.insertText,
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kind:
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s.kind === "keyword"
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? monaco.languages.CompletionItemKind.Keyword
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: s.kind === "table"
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? monaco.languages.CompletionItemKind.Struct
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: monaco.languages.CompletionItemKind.Field,
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range,
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});
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const tableRef = parseTableRef(before);
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if (tableRef) {
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const schema = tableRef.schema ?? currentSchema;
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const connectionId = useUiStore.getState().activeConnectionId;
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const cached = schema ? getCachedColumns(schema, tableRef.table) : undefined;
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if (cached) {
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return {
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suggestions: buildColumnSuggestions(cached).map(withRange),
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};
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}
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// Not introspected yet: warm the cache in the background and ask Monaco
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// to re-request once the columns are available.
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void getColumnsForTable(connectionId, schema, tableRef.table);
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return { suggestions: [], incomplete: true };
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}
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return {
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suggestions: buildSqlSuggestions(tables, currentSchema).map(withRange),
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};
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},
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});
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