Commit Graph

473 Commits

Author SHA1 Message Date
dadaloop82 5df0be1661 feat: keep qty=0 instead of auto-delete, ask user to confirm via banner
- useFromInventory: replace DELETE with UPDATE qty=0 when stock hits 0
  (both normal path and use-all-locations path)
- listInventory: add WHERE quantity > 0 so qty=0 rows are invisible in
  the regular inventory list
- New API actions: inventory_finished_items (query) and
  inventory_confirm_finished (delete after user confirms)
- Banner: new 'finished' type (priority 600, above anomalies)
  Shows: '{name} — è finito?' with two buttons
  'Sì, è finito' → permanently deletes the qty=0 row
  'No, ne ho ancora' → navigates to add-inventory form
- i18n: banner_finished_* and toast.product_finished_confirmed (it/en/de)
- DB migration: restored 75 auto-deleted products (last 30 days) as
  qty=0 inventory rows so they appear in the banner queue
2026-04-27 05:41:38 +00:00
dadaloop82 37299e60c9 fix: TTS voices — retry 10s, message on failure, refresh button
- Retry loop extended to 10s (50×200ms) for slow Android WebViews
- Show 'Nessuna voce disponibile' after timeout instead of infinite loader
- Show 'Voce non supportata dal browser' if speechSynthesis missing
- Reset to loading state on each settings open (fixes stale empty select)
- Add refresh button ↺ to force-reload voices manually
2026-04-26 17:28:05 +00:00
dadaloop82 f57ad4b330 fix: TTS voice selector stuck on 'Caricamento voci' in Chrome
Chrome loads voices async — getVoices() returns [] on first call
and onvoiceschanged may fire before the handler is assigned (race).
Add fallback retry loop: poll every 200ms for up to 4s.
2026-04-26 17:23:39 +00:00
dadaloop82 fe0221e6d4 fix: banner buttons — no icons, qty in confirm, full i18n 2026-04-26 17:17:05 +00:00
dadaloop82 4a780f2743 feat: smarter alert banners — expired only, explanatory messages
- Scadenze: rimuove 'in scadenza' dal banner (solo prodotti già scaduti)
- Consumo anomalo: spiega la media giornaliera, giorni dall'ultimo rifornimento
  e direzione della discrepanza (più/meno del previsto) con contesto
- Quantità sospetta: messaggio specifico per caso (bassa/alta/conf insolita)
- Anomalia inventario: linguaggio naturale invece di jargon tecnico
  phantom='hai più scorte del previsto', missing='hai meno scorte del previsto'
- API prediction: aggiunge days_since_restock, direction, tx_count
- confirmBannerPrediction: toast con info su ricalcolo previsioni
2026-04-26 16:57:09 +00:00
dadaloop82 546d4afd59 feat: SSE streaming recipe generation with live agent feedback
- Add generateRecipeStream() endpoint with real-time SSE status events
- Frontend generateRecipe() uses ReadableStream for live step updates
- Fix gemini-2.5-flash thinking model: disable thinkingBudget, raise maxOutputTokens to 4096
- Passo 2 is pure PHP heuristic (zero extra AI calls)
- Retry logic with live countdown on 429, fallback chain: 2.5-flash → 2.0-flash
- Pass all ingredients when meal plan is active (no limits)
- Add recipe-loading-msg element with CSS transition
2026-04-23 15:16:50 +00:00
dadaloop82 db033844d4 Gemini: centralizza chiamate API in callGemini() con backoff intelligente
- Aggiunto helper callGemini($url, $payload, $timeout):
  * Fino a 4 tentativi su 429 / 503
  * Legge Retry-After header dalla risposta HTTP di Google
  * Legge retryDelay dal corpo JSON di errore (es. '10s', '30s')
  * Backoff default: 2s, 4s, 6s (sovrascitto da Google se specificato)
- geminiReadExpiry(), geminiChat(), geminiIdentifyProduct(): rimosso curl
  diretto senza retry, ora usano callGemini()
- generateRecipe(): rimosso vecchio loop manuale (3 tentativi, 2s/4s fissi),
  ora usa callGemini() che rispetta i delay suggeriti da Google
- In caso di 429 finale restituisce il messaggio di errore da Google (non generico)
2026-04-22 11:38:47 +00:00
dadaloop82 f4a62ef496 feat: anomaly detection banner - notifica incongruenze inventario/transazioni
- New API endpoint 'inventory_anomalies': detects items where stored qty
  differs from tx history by >20% AND >50 units (phantom qty or missing qty)
- New API endpoint 'dismiss_anomaly': persists dismissal in anomaly_dismissed.json
- Banner system: new 'anomaly' type shown in dashboard alert banner
  with 'Correggi' (opens edit) and 'Ok, ignora' (dismisses) buttons
- CSS: banner-anomaly style (orange gradient)
- Fix: lo zucchero azzerato (175g fantasma rimossi), aggiunto a Bring!
2026-04-21 12:34:54 +00:00
dadaloop82 234cae14bc perf: remove Gemini from bringSuggest and product selection - pure offline logic
- bringSuggestItems: now uses smart_shopping cache (already computed offline)
  instead of calling Gemini with full inventory prompt
- aiSelectBestProduct: replaced Gemini call with token-scoring algorithm;
  scores by token overlap, first-anchor bonus, spec-variant matching,
  category mismatch penalty — 0ms vs ~1s per product search
- Only truly necessary AI calls remain: photo expiry, photo identify,
  chat assistant, recipe generation
2026-04-21 12:12:04 +00:00
dadaloop82 03142e2f7f fix: retry Gemini 429 with backoff, add recipe rate limit bucket (5/min) 2026-04-21 12:03:16 +00:00
dadaloop82 56c269d616 feat: tutte le operazioni Bring! ora completamente autonome in background
_backgroundBringSync() riscritto completamente:
- Aggiorna SEMPRE smartShoppingItems + shoppingItems con dati freschi
- Aggiunge item high/critical mancanti su Bring
- Aggiorna spec urgenza su item già presenti (anche downgrade)
- Rimuove automaticamente item auto-aggiunti quando non più urgenti
- Se la pagina shopping è aperta, re-renderizza i dati freschi
- Gira ogni 5 min via setInterval, non dipende da nessuna navigazione
- Aggiorna il badge urgenza dashboard in background
2026-04-21 05:33:52 +00:00
dadaloop82 5bbedc8a3b fix: aggiorna urgenza lista spesa live e più frequentemente
- Cache smart_shopping: 10min → 3min (urgenza fresca)
- backgroundBringSync: ogni 10min → ogni 5min + setInterval continuo
- backgroundBringSync: aggiunge anche 'high' (non solo 'critical') a Bring
- autoSyncUrgencySpecs: aggiorna spec anche se il livello di urgenza sale/scende
- Risultato: Latte/prodotti urgenti compaiono su Bring in max ~5min
2026-04-21 05:32:06 +00:00
dadaloop82 cd4fd55006 fix: sposta bottone settings kiosk in basso-sinistra (non copre più camera/Gemini) 2026-04-20 17:40:19 +00:00
dadaloop82 4e4c1867bf fix: abilita mod_headers nel Dockerfile (richiesto da .htaccess no-cache) 2026-04-20 17:37:03 +00:00
dadaloop82 517a615d11 fix: forza no-cache per JS/CSS + WebView LOAD_NO_CACHE
- .htaccess: aggiunge Cache-Control no-cache/no-store per .js/.css
- Kiosk Kotlin: aggiunge cacheMode=LOAD_NO_CACHE al WebView
- Il pulsante refresh del kiosk ora carica sempre l'ultima versione
2026-04-20 17:34:23 +00:00
dadaloop82 5e01c0656c fix: bump cache-buster JS/CSS (v=20260420a) 2026-04-20 17:29:56 +00:00
dadaloop82 abd8ab1829 fix: sposta pulsanti kiosk dentro l'header, prima del titolo
I pulsanti ora sono inseriti nel flusso del header-content come primo figlio, non più come overlay fixed che copriva il titolo.
2026-04-20 17:27:54 +00:00
dadaloop82 076593c564 fix: sposta pulsanti kiosk (X/refresh) a sinistra, prima del titolo 2026-04-20 17:18:32 +00:00
dadaloop82 63b721cf09 fix: ripristina pulsanti kiosk (X/refresh) e riduce attesa stabilità bilancia a 5s
- Aggiunge iniezione overlay kiosk lato web (X chiudi + ↻ refresh) quando _kioskBridge è disponibile, più affidabile dell'iniezione Android-side
- Riduce timer stabilità bilancia da 10s a 5s
2026-04-20 14:48:57 +00:00
dadaloop82 4db8882dbd feat: ottimizza prompt Gemini ricette (riduzione ~60% token) e migliora stabilità bilancia
Prompt ricette:
- Lista ingredienti compatta: skip staples, no brand, flag brevi (🔴3gg)
- Cap gruppo 4 a 40 items, gruppo 6 a 20
- Regole condensate da 10 verbose a 6 concise
- Testi condizionali (varietà, regen, opzioni) abbreviati
- Aggiunto detail errore API Gemini nel toast

Bilancia:
- Ignora oscillazioni sub-grammo (jitter 0.5g)
- Confronto integer-gram prima di dichiarare instabile
2026-04-20 14:43:05 +00:00
dadaloop82 cedd97fd73 fix(bring): keep weekly depletion items auto-synced despite local purchased blocklist
- autoAddCriticalItems now bypasses _isBringPurchased for imminent items
  (days_left <= 7 and uses_per_month >= 3)
- prevents missing Bring additions for items predicted to finish within a week
  after temporary local blocklist entries
2026-04-19 09:10:39 +00:00
dadaloop82 c115f83879 fix(bring): avoid ambiguous fallback match on generic words like 'dolce'
- italianToBring(): pass-2 whole-word fallback now ignores generic qualifiers
  (dolce, light, classico, originale, etc.)
- when multiple single-word matches exist, choose the longest/specific token
  instead of first catalog iteration hit
- prevents wrong mappings like 'Pancetta Dolce' being interpreted via generic
  adjective rather than the core product token
2026-04-19 09:07:44 +00:00
dadaloop82 d778817fd8 fix: auto-add to Bring! items running out within 7 days
- autoAddCriticalItems now adds:
  - critical: always (unchanged)
  - high: always (removed sub-conditions — PHP already gates high urgency strictly)
  - medium + days_left <= 7 + uses_per_month >= 3 (NEW: weekly depletion rule)
- Reduce auto-add guard from 10 min to 5 min for faster detection
- Covers: Latte di Montagna (high, 3gg), items running out mid-week (medium, 4-7gg)
2026-04-19 06:52:16 +00:00
dadaloop82 1021f04735 fix: smarter proactive shopping list urgency
- PHP: predictive urgency block now scales by imminence:
  round(days_left) <= 3 → high, <= 7 → medium, <= 14 → low
  (was flat 'low' for any days_left <= 14)
- PHP: also upgrades existing 'low' urgency to 'high' when
  imminent depletion detected (round(days_left) <= 3, isFrequent)
- JS: autoAddCriticalItems now also adds:
  - high urgency items with pct_left < 20% (nearly empty)
  - high urgency items with days_left <= 3 (imminent)
  - any item with days_left <= 2 and uses_per_month >= 5

Result: Latte di Montagna (27.8x/mo, 3 days left) now appears
on shopping list before running out, as do Lenticchie/Riso
Basmati at 1% stock and Sandwich at 1 day left.
2026-04-19 06:06:18 +00:00
dadaloop82 3901113e76 fix: Storico nav icon, recipe title in transaction notes and log display
- index.html: replace broken byte with 📋 emoji in Storico nav button
- submitRecipeUse: pass 'Ricetta: <title>' as notes to inventory_use API
  so every ingredient use is linked to the recipe in the DB
- loadLog: render recipe note as small italic line 🍳 below log-detail row
- style.css: add .log-recipe-note style (0.75rem, muted, italic)
2026-04-18 19:12:07 +00:00
dadaloop82 2edd5a6ebd fix(kiosk): skip debug keystore config when file does not exist (CI fix) 2026-04-18 18:56:27 +00:00
dadaloop82 07bdfe6b87 fix: kiosk overlay, preferred use-location, scale reconnect, Bring! translation, smart cache invalidation
- Kiosk: replace header-inject overlay with position:fixed div appended to <html>
  so buttons appear regardless of SPA init timing
- Kiosk: bump versionCode 3→4, versionName 1.2.0→1.3.0
- Kiosk: add explicit signingConfigs block (debug keystore) to avoid signature
  mismatch on updates; update banner now shows uninstall instruction + 12s timeout
- Web: v1.4.0 → v1.5.0
- Preferred use-location: remember last N location choices per product; after 3+
  consistent picks auto-select and collapse location picker (with 'cambia' link)
- Scale: call updateScaleReadButtons() on every status change so live-box and
  read button appear instantly on reconnect without manual refresh
- Smart shopping cache: invalidate JSON cache file on every inventory_add and
  inventory_use so next shopping-page load always sees current stock
- isLowStock: conf threshold changed <= 1 → < 1 (1 full pack is not low stock)
- italianToBring: replace substring matching with whole-word matching (min 4 chars)
  to prevent 'gin' matching 'original', 'rum' matching 'crumble', etc.
  Philadelphia original was silently mapped to Gin and skipped as duplicate
- Storico: add undo support (transaction_undo endpoint, undone column, JS undo btn)
- LOG → Storico rename in UI, nav, translations
- Bring! sync: urgency-aware purchased blocklist TTL (critical 30m, high 90m, others 4h)
- forceSyncBring() button to clear all guards and re-sync from scratch
- Scale live-box: position:fixed CSS class, 1.6rem/800 value, direct ml display
- Recipe use modal: scale live-box with 10s stability + 5s auto-confirm countdown
- Recipe use modal: show recipe quantity as highlighted row in Usa popup
2026-04-18 18:50:15 +00:00
dadaloop82 9e2a24def4 feat: v1.3.0 — banner notifications, quick-access, swipe navigation, bug fixes
Added:
- Expired/expiring product banner alerts with use, throw, edit, dismiss actions
- Priority-sorted notifications (expired > expiring > suspicious qty > predictions)
- Touch swipe navigation for banner with dot indicators and arrow buttons
- Quick-access buttons on inventory (4 recent + 8 popular products)
- Auto-refresh banner every 5 min on dashboard
- Edit expiry dates directly from expired/expiring notifications

Fixed:
- Ignore negative BLE scale readings
- Banner re-appearing after edit (confirmation now persisted)
- False consumption predictions when inventory was manually edited
- Kiosk overlay no longer blocks web app header
2026-04-18 05:37:03 +00:00
dadaloop82 52cfbba663 docs: update all READMEs with new features
- README.md: add anomaly banner, AI local matching, scale 10g threshold,
  ml conversion hint, auto-fill improvements, Android kiosk section,
  updated roadmap with completed items, architecture tree with kiosk
- evershelf-kiosk/README.md: complete rewrite — now reflects pure WebView
  wrapper architecture (no BLE), setup wizard, kiosk lock, exit/refresh
  buttons, permissions, gateway auto-launch, update notifications
- evershelf-scale-gateway/README.md: update architecture diagram to show
  SSE relay path, add kiosk integration note
2026-04-17 06:14:33 +00:00
dadaloop82 32e2833b27 feat: AI scan shows existing products, scale ml hint, 10g threshold
1. AI photo scan: searches local DB for matching products and shows
   'Già in dispensa' section before OFF matches. User can tap an
   existing product directly. 'Non è nessuno di questi' button for
   new products.

2. Scale live box: when product unit is ml, shows hint
   'Peso in grammi → verrà convertito in ml' so user knows the
   gram reading will be converted.

3. Scale auto-fill: ignores stable weight if it differs less than
   10g from the last confirmed reading. Prevents re-triggering the
   same weight when switching between products on the scale.
   _scaleLastConfirmedGrams tracks the last auto-confirmed weight
   and resets on page navigation.
2026-04-17 05:42:48 +00:00
dadaloop82 ccd59269d4 feat(kiosk): move exit button left of title, add hard-refresh button
- Exit ✕ and Refresh ↻ buttons now appear left of the title
- Refresh clears WebView cache and reloads (picks up web app updates)
- Uses native bridge hardReload() for true cache-busting reload
- Banner alerts reload automatically when dashboard is shown
2026-04-17 05:24:22 +00:00
dadaloop82 d37b43003c feat: show brand in anomaly banner title
Example: 'Anomalia: Latte (Granarolo)'
2026-04-16 19:22:27 +00:00
dadaloop82 9083e25f37 feat(kiosk): add camera, microphone, storage permissions
- Manifest: CAMERA, RECORD_AUDIO, READ_EXTERNAL_STORAGE, READ_MEDIA_IMAGES
- Runtime: requests all permissions on startup (requestAllPermissions)
- WebView: onPermissionRequest checks runtime grants, requests if needed
- onRequestPermissionsResult grants pending WebView permission after user allows
- Camera and mic now work inside the kiosk WebView
2026-04-16 19:07:30 +00:00
dadaloop82 bc70f330f8 fix(kiosk): replace header overlay with exit button next to Gemini
- Removed invisible overlay that was blocking camera/Gemini buttons
- Added a visible ✕ button in the header-actions bar
- Tap shows confirm dialog 'Uscire dalla modalità kiosk?'
- All header buttons (camera, Gemini, scale) work normally again
2026-04-16 18:59:53 +00:00
dadaloop82 4250a37f0d fix: dismiss banner item after editing anomaly from banner
- Added _bannerEditPending flag set when edit/weigh triggered from banner
- submitEditInventory now calls dismissBannerItem() after save
- Next banner item shows automatically after correction
- Flag reset on modal close (cancel) to prevent stale state
2026-04-16 18:58:06 +00:00
dadaloop82 c45b8ddbb9 fix(kiosk): remove FLAG_ACTIVITY_LAUNCH_ADJACENT causing split-screen
Was triggering multi-window split mode instead of launching gateway
behind the kiosk. Now uses only FLAG_ACTIVITY_NEW_TASK.
2026-04-16 18:46:27 +00:00
dadaloop82 45040f250c fix: triple-tap exit, update banner auto-dismiss, .env overwrite bug
- Triple-tap exit zone now covers full header height (was 6px, untappable)
- Uses touchend event instead of click for reliable tablet interaction
- JS bridge registered once before loadUrl (not on every page load)
- Update banner auto-dismisses after 3 seconds
- CRITICAL: _finishSetup() no longer sends empty strings to save_settings
  → was overwriting .env values (Gemini key, Bring credentials) with blanks
  → now only sends non-empty values to the API
2026-04-16 17:36:48 +00:00
dadaloop82 e38a6cb7f6 feat(kiosk): true kiosk mode, gateway bg launch, update checks, wizard fix v1.2.0
- Screen pinning (startLockTask) blocks home/recent buttons
- Gateway launches in background, kiosk returns to front after 1.5s
- Injected thin green bar at top of WebView for triple-tap exit
- JavaScript bridge for kiosk exit from WebView context
- Update check via GitHub releases API (every 6h)
- Shows banner in WebView when kiosk/gateway updates available
- Setup wizard no longer re-appears after completion/skip (evershelf_setup_done flag)
- REORDER_TASKS permission for moveTaskToFront
- singleTask launch mode for proper kiosk behavior
- Version bumped to 1.2.0 (versionCode 3)
2026-04-16 17:25:47 +00:00
dadaloop82 5991e666ec fix(kiosk): connection test, gateway detection, splash, triple-tap exit
- Fix 404: test base URL directly instead of appending /api/
- Fix gateway not detected: add <queries> block for Android 11+ package visibility
- Add splash screen with icon + loading spinner (1.5s)
- Add triple-tap on wizard title to exit kiosk mode
- Accept 3xx redirects as valid responses
- New house/shelf vector icon for launcher
- Replace emoji icon with drawable on welcome screen
- Version 1.1.0
2026-04-16 17:04:25 +00:00
dadaloop82 9363bc147e refactor(kiosk): remove built-in scale, add SSL + gateway detection
- Remove BLE/scale code (BleScaleManager, ScaleProtocol, GatewayWebSocketServer, ScaleGatewayService)
- Kiosk is now a pure WebView wrapper — scale handled by standalone gateway app
- Fix SSL certificate error: accept self-signed certs for local servers (WebView + connection test)
- Add gateway APK detection: check if it.dadaloop.evershelf.scalegate is installed
- If gateway installed: show green status, auto-launch on finish
- If not installed: show download link to GitHub releases
- Remove BLE/foreground service permissions from manifest
- Remove java-websocket dependency
- Bump version to 1.1.0
2026-04-16 16:40:11 +00:00
dadaloop82 f8c8dfb990 fix(kiosk): match statusCallback signature (3 params) 2026-04-16 16:27:09 +00:00
dadaloop82 95b6258ad8 feat(kiosk): add setup wizard on first launch
- 3-step wizard: Welcome → Server URL → Scale Setup → Launch
- Connection test with live feedback
- BLE scale status during wizard
- Dark theme with modern UI (slate/purple palette)
- Settings page with URL edit, connection test, scale info, wizard reset
- Skip scale option for users without BLE scales
- Error page with retry button when server unreachable
- All UI in English
2026-04-16 16:23:13 +00:00
dadaloop82 d931b471f0 fix: add missing launcher icons for kiosk app
- Adaptive icon XMLs (API 26+) with vector foreground + green background
- PNG fallbacks for all density buckets (mdpi through xxxhdpi)
- Added ic_launcher_background color to colors.xml
2026-04-16 16:06:25 +00:00
dadaloop82 383ef1113d feat: kiosk APK download banner in settings page
- Green-themed banner between settings panels and Save button
- Direct download link to kiosk-latest release APK
- Auto-hidden when running inside Android WebView (kiosk mode)
- i18n: translations added for it/en/de
2026-04-16 16:00:40 +00:00
dadaloop82 1c792a4e4a ci: add GitHub Actions workflow for kiosk APK build 2026-04-16 14:47:35 +00:00
dadaloop82 3e25fcd5df feat: banner alerts, consumption predictions, scale improvements, kiosk app
- Banner notification system: suspicious quantities + consumption prediction alerts
- Consumption predictions API: tracks 90-day usage patterns, flags >30% deviations
- Scale stability timeout: 5s → 10s, auto-confirm remains 5s
- Scale integration in edit form: weigh button with inline live display
- Banner edit/weigh actions open edit form directly with scale activation
- Cooking mode: Italian aliases + stem-prefix matching for ingredients
- Recipe regeneration: tracks rejected ingredients for diversity
- Settings migration: localStorage → .env server-side storage
- Expiry priority: mandatory ≤3 days, recommended ≤7 days in recipes
- Scale bug fixes: clear stale weight, double-submit guard, cap deduction
- Android kiosk app (evershelf-kiosk): WebView + embedded BLE scale gateway
- Version bump to 1.4.0
2026-04-16 14:46:30 +00:00
dadaloop82 3ff91b3018 fix(scale): progress-bar restart loop + low-weight warning + gateway auto-reconnect cycle
- Fix progress-bar restarting continuously when weight is stable:
  add _cancelScaleTimersOnly() that stops timers/animations without
  _cancelScaleTimersOnly() so the same value resumes counting when
  stability returns instead of always restarting the 5-s wait.
  Add 'else if' branch in _scaleAutoFillUse / _scaleAutoFillRecipeUse
  to restart stability wait after brief instability for the same value.

- Show red blinking warning in scale-live-box when weight < 10 g:
  adds scale-low-weight CSS class with pulsing border/shadow animation,
  the label shows '< 10 g · inserisci manualmente' instead of the
  stability progress bar.  No auto-confirm fires below 10 g.

- Gateway Android app: scale auto-reconnect now retries indefinitely.
  isAutoReconnecting flag keeps the scan→wait→scan cycle running until
  the scale is found again; onScanStopped schedules a new scan after
  10 s whenever autoReconnect is active and scale is still offline.
2026-04-16 06:25:40 +00:00
dadaloop82 1c686fa842 feat(gateway): auto-reconnect to scale after disconnect (scale auto-off)
When the scale turns off by itself (auto-off after inactivity), onDisconnected()
now automatically restarts BLE scan after 5 s, with enableAutoConnect() set so
the saved scale is connected as soon as it starts advertising again.
The hint text shows '🔄 Reconnecting to saved scale in 5 s…' during the wait.
2026-04-15 21:17:34 +00:00
dadaloop82 951ef1d64f fix(scale): auto-fill broken for conf products (e.g. latte)
Two root causes:
1. _useNormalUnit was stale ('pz') for conf products because it's only
   updated in normal mode — fix: resolve effective unit from
   _useConfMode.packageUnit when in sub mode
2. Food scales in liquid mode send unit='ml' directly — was falling
   through to raw value, skipping density; fix: detect scaleAlreadyMl
   flag to use ml directly for ml target, or apply density for g target
Also: add scale pre-fill call after switchUseUnit('sub') in conf mode
2026-04-15 21:12:37 +00:00
dadaloop82 7144ec7386 feat(scale): g→ml density conversion for liquid products
- _scaleDensityForProduct(): returns g/ml density based on product name/category
  olio oliva 0.91, girasole 0.92, spirits 0.94, aceto/panna 1.01, latte 1.03,
  yogurt 1.05, succo 1.04, miele/sciroppo 1.40, default 1.00 (water)
- _scaleAutoFillUse(): normalises all scale units to grams first, then converts
  to target unit; when unit=ml applies density; never touches pz/conf
2026-04-15 21:08:41 +00:00