fix(build): declare terser-webpack-plugin, restoring the production build

[rubenvdlinde]

Follow-up to #140. That PR fixed npm ci; release-stable now gets past it and fails on the next step, npm run build.

Failure

Run 30831246003 — npm ci succeeded (added 1197 packages), then:

[webpack-cli] Error: Cannot find module 'terser-webpack-plugin'
Require stack:
- node_modules/@nextcloud/webpack-vue-config/webpack.config.js
- node_modules/@nextcloud/webpack-vue-config/index.js
- webpack.config.js

Cause

@nextcloud/webpack-vue-config require()s terser-webpack-plugin without declaring it. It got away with that because webpack used to ship it:

webpack	own dependencies
5.105.4 (previous lockfile)	"terser-webpack-plugin": "^5.3.17"
5.109.2 (current lockfile)	removed

Our range is "webpack": "^5.94.0", so regenerating the lockfile in #140 moved webpack 5.105.4 → 5.109.2 in range and the phantom dependency vanished with it.

This was latent before #140 only because npm ci never succeeded, so npm run build never ran.

Fix

Declare terser-webpack-plugin: ^5.3.17 as a devDependency.

We genuinely use it — via @nextcloud/webpack-vue-config's webpack config — so declaring it states a real dependency rather than working around one. It is also version-independent: a future in-range webpack bump cannot silently remove it again.

Pinning webpack back to 5.105.4 would restore the build too, but would leave the undeclared dependency in place to break on the next bump, and would freeze webpack for an unrelated reason.

+1 line in package.json, +62 in the lockfile. Nothing else moves — @nextcloud/axios stays 2.5.2, @conduction/nextcloud-vue stays 1.0.0-beta.101.

Verification

• npm ci (npm 10) — succeeds, added 1305 packages
• npm run build — exit 0, webpack 5.109.2 compiled with 2 warnings
• npm run lint — exit 0, 0 errors (66 pre-existing @spec jsdoc warnings)

[github-actions]

Quality Report — ConductionNL/doriath @ 149b342

Check	PHP	Vue	Security	License	Tests
lint	✅
phpcs	✅
phpmd	✅
psalm	✅
phpstan	✅
phpmetrics	✅
eslint		✅
stylelint		✅
composer			✅	✅ 102/102
npm			✅	✅ 309/309
PHPUnit					❌
Newman					❌
Playwright					⏭️

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Quality workflow — 2026-08-03 16:35 UTC

Download the full PDF report from the workflow artifacts.