Kann ich Loco vibecoden?

Build a local translation management app called Strings. No accounts, no cloud, no telemetry.

Stack, non negotiable:
- Node 20 with Express and TypeScript
- SQLite via better-sqlite3, file at ./data/strings.db
- Server rendered EJS templates plus a little vanilla JS, no React, no bundler
- Runs with `npm run dev` on localhost:4321

Data model:
- projects: id, name, source_locale
- locales: id, project_id, code (BCP 47)
- keys: id, project_id, name (dot notation allowed), context note, created_at
- translations: key_id, locale_id, plural_category (one of other, one, two, few, many, zero), value, updated_at
- history: translation_id, old_value, new_value, changed_at

UI:
- Project list, then a grid page per project: rows are keys, columns are locales, cells are inline editable textareas that save on blur via fetch
- Filters: untranslated only, search by key or value substring
- Per key detail drawer showing context note, plural forms, and history
- Progress bar per locale showing percent of keys with a non empty value

Import and export, implement exactly these three formats and be strict:
- Flat and nested JSON
- gettext PO, including Plural-Forms header parsing and msgid_plural
- Android strings.xml, including plurals blocks with quantity attributes
Use the CLDR plural categories for each locale code; hardcode a small lookup table for the twenty most common locales and fall back to other plus one.

Also ship a CLI: `npm run export -- --project=X --locale=fr --format=po --out=./out` so a build script can use it.

Optional machine translation: if DEEPL_API_KEY is set in .env, add a "fill empty cells" button per locale that batches untranslated source strings through DeepL and marks results as machine translated with a flag shown in the grid. If the key is missing, hide the button rather than erroring.

Out of scope: multi user auth, sharing links, webhooks, screenshots, glossary, TMX.

Include a README with setup, a `.env.example`, and seed data for one project with English, French and Polish so plural handling is exercised on day one.

Antworte mir auf Deutsch. Oberfläche, Kommentare und README auf Deutsch, alle Bezeichner wie Tabellen, Spalten, Variablen, Routen und Dateinamen bleiben Englisch.