feat(typescript) :: typecheck browser JavaScript in CI

[81reap]

Motivation

• The browser scripts carry JSDoc types that nothing checks, so a misspelt property or a missing null check only shows up in a browser.
• The browser tests are TypeScript, but nothing compiles them either. fix(modal) :: give modal component an accessible name #1367 fixed a getByRole option that does not exist; tsc reports it as TS2353.

Description

• Add a root tsconfig.json running checkJs and strict over sqlpage/*.js, and one per test project.
• Declare in sqlpage/globals.d.ts the names the bundle relies on at runtime rather than through an import: L, ApexCharts, chart_series, TomSelect, and tabler's bundled bootstrap.
• Declare in tests/end-to-end/globals.d.ts what the tests reach for on the page, chiefly the Tom Select instance sqlpage_select_dropdown attaches to a <select>.
• Fix what the checker found: unguarded page.goto() results in the tests, a querySelectorAll typed as Element, and an Array.prototype.shift whose result is only sometimes defined.
• Hoist @types/node to the root, add typescript, and run npm run typecheck from npm test.
• Split table sorting into three named tests, reading the cells as td._col_id and td._col_Amount_in_stock. It looked for td.id and td.Amount, which the table has never rendered, so it sorted two empty lists and passed whatever the table did. The new helper refuses a column of fewer than two cells.

Testing

• npm test checks 46 files, typechecks the three projects and passes the 15 unit tests, all reporting nothing.
• The browser suite passes 43 tests.
• no console errors on card page fails for the reason described in fix(biome.js) :: fix remaining lint issues #1366, on this branch and on the unmodified base alike.

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GitHub cannot base a pull request on a branch that lives in a fork, so all eight target main and each one carries the commits of those above it. Review and merge them in order:

1. fix(biome.js) :: fix remaining lint issues #1366 :: fix(biome.js) :: fix remaining lint issues
2. fix(modal) :: give modal component an accessible name #1367 :: fix(modal) :: give modal component an accessible name
3. fix(map) :: ignore map coordinates that are not a pair of numbers #1368 :: fix(map) :: ignore map coordinates that are not a pair of numbers
4. feat(chart) :: render column charts as bar charts #1369 :: feat(chart) :: render column charts as bar charts
5. fix(chart) :: align stacked series on their X values #1370 :: fix(chart) :: align stacked series on their X values
6. fix(chart) :: line series up on a category axis for every chart type #1371 :: fix(chart) :: line series up on a category axis for every chart type
7. fix(npm) :: install dependencies only once at root level #1372 :: fix(npm) :: install dependencies only once at root level
8. feat(typescript) :: typecheck browser JavaScript in CI #1373 :: feat(typescript) :: typecheck browser JavaScript in CI ← this PR