docs: highlight zero-waste tips prominently in README

README.md

@@ -38,6 +38,11 @@
 
 ## ✨ Features
 
+> ♻️ **New in v1.7.19 — Zero-waste cooking tips**
+> During cooking, EverShelf shows a contextual ♻️ tip card for each step that generates reusable scraps — peels, cooking water, egg whites, cheese rinds, bread crusts and more.
+> Tips are generated by Gemini *as part of the recipe* at zero extra API cost, shown inline in cooking mode, and dismissible per step.
+> Enable the toggle in **Settings → Zero-waste tips** (default: off).
+
 ### 📦 Inventory Management
 - **Export inventory** — Download the full inventory as a UTF-8 CSV (Excel-compatible) or open a print-ready page to save as PDF; export button always visible in the inventory page header
 - **Barcode scanning** — Scan products with your phone camera using QuaggaJS; last 20 scanned products saved as tappable chips so you can re-select them without rescanning
@@ -69,6 +74,7 @@
   - **Catalog coverage** — All product types resolve to a German Bring! catalog key for icon and category display in the Bring! app
 
 ### 🍳 Cooking Mode
+- **♻️ Zero-waste tips** — For each cooking step that generates reusable scraps (peels, cooking water, egg whites, cheese rinds, bread crusts, vegetable tops, etc.), a dismissible ♻️ tip card appears with a practical reuse idea; tips are generated by Gemini as part of the recipe at no extra API cost; opt-in toggle in Settings (default OFF)
 - **Step-by-step guidance** — Follow recipes with a hands-free cooking interface
 - **Text-to-Speech** — Voice readout of recipe steps; supports browser Web Speech API, native Android TTS (kiosk), or a custom REST endpoint (Home Assistant, etc.); retries voice loading for up to 10 seconds with a fallback refresh button; TTS activates automatically without requiring the global TTS setting to be enabled
 - **Auto-read on navigate** — Each step is read aloud automatically when you tap Next or Previous; the first step is read when entering cooking mode