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feat: Tradingview Lightweight Charts - #1376

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feat: Tradingview Lightweight Charts#1376
dsmmcken wants to merge 27 commits into
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Don McKenzie and others added 5 commits July 10, 2026 13:42
# Conflicts:
#	package-lock.json
#	tests/app.d/tests.app
*_series constructors and chart-level kwargs on per-type constructors
were removed; compose via tvl.chart(...) instead. Fixes server startup
crash in e2e docker container.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…s them

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Fix pre-existing lint errors that fail `npm run test:ci` (test:ci:lint):
- Move @deephaven/dashboard-core-plugins from devDependencies to
  dependencies (imported by non-test source; import/no-extraneous-deps)
- strict-boolean-expressions: explicit null/empty checks
- no-shadow: rename shadowing pendingDs locals to pendingResample
- no-param-reassign: house-style inline disables for intentional mutation
- no-nested-ternary: hoist chart-type formatter selection to if/else
- drop unused error/isLoading state value bindings
- normalize isDownsampleSwap to a definite boolean
- consistent-type-imports, no-empty-function, react/destructuring-assignment,
  jsx-props-no-spreading, max-classes-per-file, and prettier formatting

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Don McKenzie and others added 3 commits July 27, 2026 15:05
Remove 6 of the 7 eslint-disable comments added when first fixing lint,
addressing the root causes instead:
- no-explicit-any: pendingDownsample is a public field; drop the `as any`
- no-param-reassign (x2): mutate via array-index locals, not forEach params
- jsx-props-no-spreading (x2): destructure and pass props explicitly in tests
- max-classes-per-file: make MockResizeObserver a mock factory (one class left)

The one remaining disable (react-hooks/exhaustive-deps on the DOM-derived
useDHChartTheme memo) is kept intentionally — it matches the established
convention in the ui plugin for memos that depend on non-scope DOM state.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The tvl plugin lagged the rest of the repo (e.g. dashboard-core-plugins
^0.85.42, components ^1.2.0, plugin ^1.2.0). Bump the shared @deephaven/*
deps to the versions the sibling plugins (pivot / pivot-builder / plotly-
express) pin, which are already hoisted at the workspace root:

- components ^1.22.1, dashboard ^1.24.0, dashboard-core-plugins ^1.24.0,
  jsapi-bootstrap ^1.23.0, log ^1.8.0, plugin ^1.24.0, redux ^1.23.0,
  utils ^1.10.0, jsapi-types ^1.0.0-dev0.39.6

This dedupes the previously-nested dashboard-core-plugins@0.85.x tree onto
the root 1.24.0 install (removing ~167 stale packages). Verified: repo-wide
tsc, full build, and test:ci (unit + lint) all pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Cut the tradingview-lightweight plugin's eslint-disable comments from 72 to
4 by fixing the underlying issues instead of suppressing them:

Production source:
- no-explicit-any (33): use real @deephaven/jsapi-types / lightweight-charts
  types (Widget.sendMessage, PartitionedTable, plot.Downsample, DateWrapper,
  Event<T>, IRange/LogicalRange), access now-public model fields directly,
  and add a declaration.d.ts for the `*.css?inline` import (drops @ts-ignore)
- no-param-reassign (2): resolve colors into locals, not the params
- no-continue (3): wrap loop bodies in positive conditions
- no-non-null-assertion (1): get-or-create map entry
- class-methods-use-this (1): make unwrapValue static
- import/prefer-default-export (1): default-export the plugin

Tests:
- no-new (16): assign construction to a var + assert defined (house pattern)
- no-underscore-dangle (9) + no-var-requires (1): expose mock internals under
  non-underscore names, import the same mock instance via `import * as`
- no-explicit-any (2): `as never` / typed casts

The 4 remaining are deliberate and match repo convention: react-hooks/
exhaustive-deps on two DOM-derived effects/memos (as the ui plugin does), and
no-underscore-dangle on the intentional `__tvlTestHook` global debug hook.

Verified: repo-wide tsc, build, and test:ci (unit + lint, 332 suites) all pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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