doc: fix embed script filename and stale workflow path in dev docs

[olitreadwell]

Closes #

This PR fixes a wrong file path in the dev setup docs.

readme/dev.md told contributors to run yarn dev:rollup "after changes to the embed/index.ts file".

That file does not exist.

The real embed entry file is embed/index.tsx: confirmed by rollup.config.js (input: "embed/index.tsx") and by the file that is actually on disk at embed/index.tsx.

This corrects the extension so the docs match the code.

How to test

1. Open readme/dev.md and check the "Build the embed script" section.
2. Confirm it now says embed/index.tsx.
3. Confirm embed/index.tsx exists in the repo and rollup.config.js uses that same path as its input.

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• I added a CHANGELOG entry: skipped, this is a one-line docs typo fix with no user-facing or behavioural change
• I made a self-review of my own code
• I wrote tests for the changes (if applicable): N/A, docs-only change
• I wrote configurator and chart config migrations (if applicable): N/A

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Automation notes (fork-internal contribution run)

• Repo: olitreadwell/visualization-tool (fork of visualize-admin/visualization-tool)

• Type: docs-grounded fix (path mismatch between docs and code)

• Evidence it was genuinely wrong:

  • readme/dev.md:80 (before fix) referenced embed/index.ts
  • ls embed/ shows only index.tsx, iframe-resizer.d.ts, tsconfig.json : no index.ts
  • rollup.config.js line 16: input: "embed/index.tsx", the build pipeline itself only knows about the .tsx file

• Diff: 1 file changed, 1 line changed (well under the 80-line cap)

• Checks: docs-only change, no test/lint/typecheck/build impact; verified the referenced file path directly against the filesystem and rollup.config.js instead of relying on a test suite

• AI review (ocr): not installed/run in this environment (non-blocking per policy); did a careful manual self-review instead: single-line, low-risk change

• Promotion command (for Oli to run himself, if he chooses to send this upstream):

  gh pr create --repo visualize-admin/visualization-tool --base main \
    --head olitreadwell:docs/fix-embed-index-path \
    --title "doc: fix embed script filename in dev setup docs" \
    --body-file <(git show HEAD --format=%b -s)

No CLA bot, no DCO/sign-off requirement, no commit-signing requirement found in this repo's CONTRIBUTING/workflows: should be a clean promotion.

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All commits in this PR

This PR bundles 2 related fixes (same repo, same trivial-fix theme: broken links / typos / stale references), per the story-PR consolidation policy:

• doc: fix embed script filename in dev setup docs
• doc: fix stale workflow path and remove nonexistent script reference

How to verify

git fetch https://github.com/olitreadwell/visualization-tool.git docs/fix-embed-script-filename
git checkout FETCH_HEAD
# then run the repo's test command (see "Checks run locally" / CI)

AI assistance

Drafted with AI assistance.

The gap was found and verified against the current code, the change was verified before opening, and this diff was reviewed line by line.

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PROMOTION NOTE (remove this section before/when opening against upstream):

gh pr create --repo visualize-admin/visualization-tool --base main --head olitreadwell:docs/fix-embed-script-filename

Prerequisites: none outstanding (re-verify CLA/DCO/signing before promoting).

[olitreadwell]

Closing as duplicate: the same change was already submitted upstream in visualize-admin#2601 (CLOSED). See visualize-admin#2601

[olitreadwell]

Superseded by upstream visualize-admin#2601.