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Feature: Bring-style emoji & category icons for items

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Every shopping item now gets a visual like in Bring: a product emoji on
a softly tinted category tile.

- ItemVisuals.kt: pure client-side classifier. German dictionary
  (~180 entries) maps item names to emoji + one of 13 categories
  (produce, drinks, bakery, dairy, meat&fish, frozen, pantry, sweets,
  household, drugstore, baby, pet, other), each with an accent color.
  Longest-keyword-first matching so compounds resolve to their most
  specific entry (Wassermelone is produce, not a drink); juice
  compounds (Apfelsaft, Orangensaft, ...) are listed explicitly because
  their fruit prefix is longer than 'saft'. Unknown items fall back to
  the generic cart on neutral grey. Works fully offline, nothing leaves
  the device.
- ListDetailScreen: emoji tile in every item row, emoji in the
  autocomplete suggestions dropdown, and a live emoji preview as the
  text field's leading icon while typing.
- ItemVisualsTest: longest-match priority, case/whitespace
  insensitivity, fallbacks, category coverage.

Verified: assembleDebug + unit tests green (JDK 21).
This commit is contained in:
Tronax 2026-08-22 10:16:37 +02:00
parent 15b3f1071f
commit 37cbb816e5
Signed by: Tronax
SSH key fingerprint: SHA256:2pKKXDZucWvaF/GzXNz0FY53EAO1YDLN80bqS+TTz/o
5 changed files with 375 additions and 7 deletions
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README.md
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@ -11,6 +11,7 @@ Mitbringsl ist eine moderne, schnelle und werbefreie Einkaufslisten-App mit **Lo
- 📱 **Android App**: Kotlin 2.x, Jetpack Compose Material 3, Room, Hilt, WorkManager.
- 🔌 **Local-Only by Default**: Kein Account nötig — die App startet direkt ohne Login; Sync & Account sind optional (auch Self-Hosted, Server-URL in der App konfigurierbar).
- 👥 **Geteilte Listen**: Listen per 8-Zeichen-Invite-Code teilen und gemeinsam bearbeiten; Membership wird serverseitig bei jedem Sync geprüft.
- 🎨 **Produkt-Icons (Bring-Style)**: Jeder Artikel bekommt automatisch ein passendes Emoji mit Kategorie-Farbe – Milch 🥛, Brot 🍞, Äpfel 🍎 … auch im Autocomplete und live beim Tippen. Komplett offline über ein deutsches Wörterbuch, kein Tracking.
- ⚡ **Local-First Sync Engine**: Hybrid Logical Clock (HLC), append-only `op_log`, Last-Write-Wins (LWW) Projektionen, Idempotente Push/Pull-Algorithmen.
- 🔐 **Datenschutz & Auth**: Argon2id Passwort-Hashing, opaque Session-Tokens, OIDC-Unterstützung (Google & eigene IdPs wie Authentik/Keycloak) — Login-Methoden werden serverseitig per `/api/config` entdeckt, Passwort-Login lässt sich per `AUTH_PASSWORD_ENABLED=false` komplett abschalten.
- ⚙️ **Settings & Themes**: Account-/Profil-Verwaltung (`/api/me`), Theme-Umschalter (System/Hell/Dunkel), lokaler Daten-Reset — alles direkt in der App.