Formatting was configured but never enforced: `bun run format:check`
reported 199 unformatted files and ran in no workflow and in no git hook,
so .prettierrc (printWidth 100, trailing commas) described an intention
rather than the tree.
This is the one-time sweep that makes the check gateable. Whitespace and
token-reflow only -- no behavioural change: `bun run check` reports 0
errors and all 1053 frontend tests pass before and after.
Kept out of every other commit on purpose. A 199-file diff mixed with
real changes is unreviewable, and the next commit turns format:check
into a hard CI gate so this cannot silently accumulate again.
Three gaps in the frontend tooling, all in the package.json script surface.
1. No JS/TS linter or formatter existed at all for 274 TS/Svelte files.
Adds an ESLint flat config (typescript-eslint + eslint-plugin-svelte,
Svelte 5 + TS strict) and prettier + prettier-plugin-svelte, plus the
`lint`, `lint:fix`, `format`, `format:check` scripts.
The tree is error-clean (`npx eslint .` exits 0). Getting there needed
seven real one-line fixes (braced switch cases that leaked `const` across
arms, a useless regex escape, two `let`s that never change, a thrown Error
that dropped its `cause`, and two `// eslint-disable-next-line` comments
documenting the Svelte 5 bare-read-for-dependency idiom). Everything else
that fires is set to `warn` with the reason written next to it in
eslint.config.js — notably ~94 dead bindings and `any` at the IPC
boundary. Those are real findings to drive to zero, not noise to delete.
`no-console` is OFF for now: a parallel change is moving all ~468 console
calls onto a logger facade, and turning the rule on today would collide
with it. eslint.config.js says so, and says to flip it to `error` once
that lands.
`prettier --write` is deliberately NOT run here — it would rewrite ~200
files and swamp every other diff in flight. The gate is available; the
sweep is a separate commit. Markdown and CI YAML are in .prettierignore
because both are hand-laid-out (and docs/traceability.md is generated).
2. `bun run test` was bare `vitest`, i.e. watch mode — while CLAUDE.md's
"Before Committing" list tells people to run it. It is now `vitest run`,
with `test:watch` and `test:coverage` (also `--run`-ified) alongside.
scripts/test-all.sh drops the now-redundant `--run`, and
scripts/test-frontend.sh keeps `--watch`/`--ui`/`-w` working by routing
them to a long-running vitest instead of the single-pass one.
3. The webdriverio e2e suite is deleted. It was last touched in January
("First working POC"), has never run since, and is not in CI — five
devDependencies and two scripts of pure decoration. Removes e2e/,
wdio.conf.ts, the two `test:e2e*` scripts, the @wdio/* + webdriverio
devDeps, and the WebdriverIO block in .gitignore.
The package.json diff also carries `hooks:install` and `check:links`, wired
up by the following commits.
dtourolle
