fix(biome.js) :: fix remaining lint issues

[81reap]

Motivation

• biome check . reports 18 warnings on a clean checkout, so a warning introduced by a new change is easy to miss.
• A developer's local .claude/settings.local.json is checked too, and fails the run outright.

Description

• Drop !important from the declarations that do not need it.
• Keep it, with a biome-ignore naming the reason, in the three places that do: leaflet injects its stylesheet after ours, tabler's spacing utilities are themselves !important, and .markdown pre caps the height a print rule has to override.
• Use optional chaining in mdastToDelta and open_modal_for_hash.
• Remove a biome-ignore for noUnusedVariables that no longer matches anything.
• Drop a @ts-ignore on a typed Buffer.from call, and give three Number.parseInt calls their radix.
• Ignore .claude/*.json in biome.json, alongside the existing .zed/*.json.

Testing

• npm test checks 36 files and reports nothing, where the base reports 18 warnings and 3 infos.
• The browser suite passes 21 tests against a local official site.
• no console errors on card page fails here and on the unmodified base alike: the page loads avatars from avatars.githubusercontent.com, which this machine cannot verify (ERR_CERT_AUTHORITY_INVALID).

---

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 ← this PR
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

[81reap]

More validations including screenshots. LMK if there's any comments/questions/concerns and I will address them :)

$ npm test

> sqlpage@1.0.0 test
> biome check .

Checked 36 files in 23ms. No fixes applied.

$ cargo build
Compiling sqlpage v0.45.0 (/home/reap/Desktop/SQLPage)
 Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.82s

$ cargo test
   Compiling sqlpage v0.45.0 (/home/reap/Desktop/SQLPage)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 15.15s
     Running unittests src/lib.rs (target/debug/deps/sqlpage-9c0b80f3c9b03581)

running 175 tests
[...]

test result: ok. 175 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s

     Running unittests src/main.rs (target/debug/deps/sqlpage-6d93c28a6118a58e)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running tests/mod.rs (target/debug/deps/mod-6dd7f46546fbaa06)

running 72 tests
[...]

test result: ok. 72 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.29s

   Doc-tests sqlpage

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

$ cd examples/official-site
$ SQLPAGE_PORT=8099 ../../target/debug/sqlpage 

[81reap]

I did also run integration tests. All but one of them passed on my dev machine. The one that fails seems to be a cert issue unrelated to my changes. I will defer to the automated CI runs to confirm. @lovasoa would you be able to start the workflow for me?

$ npx playwright test

Running 22 tests using 8 workers
[chromium] › official-site.spec.ts:21:5 › chart
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:233:5 › form example
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:264:5 › Authentication example
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:44:5 › toast notifications initialize, stack, dismiss, and render safely
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:38:5 › map
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:27:5 › chart supports hiding legend
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:5:5 › Open documentation
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
[chromium] › official-site.spec.ts:247:5 › File upload
Skipping host requirements validation logic because `PLAYWRIGHT_SKIP_VALIDATE_HOST_REQUIREMENTS` env variable is set.
  1) [chromium] › official-site.spec.ts:356:5 › no console errors on card page ─────────────────────

    Error: expect(received).toHaveLength(expected)

    Expected length: 0
    Received length: 2
    Received array:  ["Failed to load resource: net::ERR_CERT_AUTHORITY_INVALID", "Failed to load resource: net::ERR_CERT_AUTHORITY_INVALID"]

      339 |   await page.waitForLoadState();
      340 |
    > 341 |   expect(errors).toHaveLength(0);
          |                  ^
      342 | }
      343 |
      344 | test("no console errors on table page", async ({ page }) => {
        at checkNoConsoleErrors (/home/reap/Desktop/SQLPage/tests/end-to-end/official-site.spec.ts:341:18)
        at /home/reap/Desktop/SQLPage/tests/end-to-end/official-site.spec.ts:357:3

    Error Context: test-results/official-site-no-console-errors-on-card-page-chromium/error-context.md

  1 failed
    [chromium] › official-site.spec.ts:356:5 › no console errors on card page ──────────────────────
  21 passed (7.5s)

  Serving HTML report at http://localhost:9323. Press Ctrl+C to quit.