Update: ToDos, Namen und Bugfixes Live (Tisch-Artikel, UI, Modals)

GEMINI.md

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+# GEMINI.md - Context for AI Agents
+
+## Project Overview
+**Name:** Trekking Packliste
+**Type:** PHP Web Application (Native)
+**Purpose:** A modern, web-based application for managing packing lists for hiking, trekking, and travel. It focuses on weight optimization, hierarchical packing (containers/nesting), and household collaboration.
+
+## Architecture & Technology
+- **Backend:** Native PHP 8.2 (No framework).
+- **Frontend:** HTML5, CSS3 (Custom Theme), Bootstrap 5, Vanilla JavaScript.
+- **Database:** MariaDB / MySQL.
+- **Containerization:** Docker (Apache image).
+- **CI/CD:** Gitea Actions (`.gitea/workflows/build-push.yaml`).
+
+## Directory Structure
+- `/src/`: Source code root.
+    - `*.php`: Application logic and views.
+    - `assets/`: CSS, JS, and static images.
+    - `uploads/`: User-uploaded images (mounted volume in Docker).
+- `Dockerfile`: Defines the application environment.
+- `packliste.sql`: Database schema and initial data.
+- `.gitea/`: Gitea-specific configurations (workflows).
+
+## Key Files
+- `src/db_connect.php`: Handles database connection. Prioritizes environment variables (`DB_HOST`, etc.) over `config.ini`.
+- `src/index.php`: Application dashboard.
+- `src/api_packing_list_handler.php`: AJAX handler for packing list operations.
+- `README.md`: Comprehensive documentation on features and usage.
+
+## Database Schema (Key Tables)
+- `articles`: Inventory items (weight, category, image).
+- `backpacks`: Transport containers (weight, volume).
+- `backpack_compartments`: Sub-sections of backpacks (e.g., "Lid", "Main").
+- `packing_lists`: The main lists.
+- `packing_list_items`: Link between lists and articles (supports nesting/hierarchy).
+- `users` & `households`: User management and sharing scope.
+
+## Development & Deployment
+
+### Local Development (Docker)
+1.  **Build:** `docker build -t packliste-app .`
+2.  **Run:**
+    ```bash
+    docker run -d \
+      -p 8080:80 \
+      -e DB_HOST="host.docker.internal" \
+      -e DB_USER="root" \
+      -e DB_PASSWORD="password" \
+      -e DB_NAME="packliste" \
+      -v $(pwd)/src/uploads:/var/www/html/uploads \
+      packliste-app
+    ```
+
+### Manual Installation
+- Configure `config.ini` in the parent directory of the web root (or use env vars).
+- Import `packliste.sql` into the database.
+
+### Conventions
+- **Code Style:** Native PHP, procedural/functional mix.
+- **Frontend:** Bootstrap 5 classes for layout. Custom CSS in `assets/css/style.css`.
+- **Database:** Use `mysqli` with prepared statements for security.
+- **Security:** Always validate user input. Passwords hashed with `password_hash()`.
+
+## Core Features
+- **Weight Calculation:** Real-time summation of weights in lists.
+- **Households:** Shared inventory and lists between users.
+- **Drag & Drop:** `Sortable.js` used for organizing packing lists.