chore: quality & housekeeping sweep (TypeScript / Next.js)

[claude]

Autonomous quality & housekeeping sweep over the TypeScript / Next.js stack. Two findings raised, both fixed and both mechanical; the full check chain is green on the final commit.

Merged findings

#	Pass	Datei(en)	Befund	Fix	Aufwand	Empfehlung
1	E (Docs)	agent_docs/project-structure.md	7 modules exist under src/ but are absent from the structure tree, whose own header asks to be updated on every add/move/remove: components/ErrorBoundary.tsx, components/SidebarResizer.tsx, utils/access-log-filter.ts, utils/download.ts, utils/editor-draft.ts, utils/file-import.ts, utils/sidebar-width.ts	7 tree entries added at their alphabetical position in the utils/ list (the components/ list is grouped, not sorted, so the resizer sits next to Sidebar.tsx and the crash guard leads the block); each description is taken from the module's own header comment	S	auto-fix
2	Security	.gitignore	Only the bare .env was ignored. Next.js also loads .env.local, .env.production and .env.*.local, so any of those would have been offered by git add with nothing stopping the commit. .dockerignore already excludes .env.* — the two ignore files were out of step	.env.* added with a !.env.example negation. Verified with git check-ignore: .env.example is still not ignored, .env.local and .env.production.local now are. No tracked file changes state	S	auto-fix

No source file under src/ is touched by this PR.

Tooling-Status

Tool	Aktiv	Konfiguriert in	Lief grün
Prettier 3.9.6 (format:check)	ja	.prettierrc.json, .prettierignore	ja — "All matched files use Prettier code style!"
TypeScript (tsc --noEmit)	ja	tsconfig.json	ja — exit 0
ESLint 9 flat (lint)	ja	eslint.config.js	ja — exit 0, 0 errors / 27 pre-existing a11y warnings
vitest 4 (test)	ja	vitest.config.ts	ja — 72 files, 637 passed, 5 skipped
Next.js build (build)	ja	next.config.ts	ja — exit 0

Chain run in this repo's own order (CLAUDE.md → Commands, mirroring docker-publish.yml): npm ci → format:check → tsc --noEmit → lint → test → build.

Deferred

• 27 jsx-a11y ESLint warnings (0 errors) across 10 components — each is a keyboard-interaction design decision, not a mechanical edit. Already tracked as fix(a11y): graph canvases offer no keyboard path to focus or activate a node #465 and fix(a11y): tab bars lack roving tabindex; StashViewer panels lack aria-controls/tabpanel wiring #457.
• 39 exported symbols with no cross-module consumer (mostly type/interface aliases and test seams) — dropping export is a style call, not dead-code removal; equivalence unclear.

Both are recorded in #582.

Keine Version-Bumps enthalten

package.json and package-lock.json are untouched — git diff -- package.json package-lock.json is empty. Dependency version bumps and Dependabot PRs (#578, #476, #437, #360, #125) are out of scope for this routine and were not touched.

Closes #582

🤖 Generated with Claude Code

https://claude.ai/code/session_016oZDrMULeCJTxz762nC8aH

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