feat: add Corteza Cloudron package (Low-Code)

- Create Dockerfile downloading pre-compiled binaries
- Add CloudronManifest.json with PostgreSQL and localstorage addons
- Create README.md with comprehensive low-code platform documentation
- Add .env.example for environment configuration
- Add CHANGELOG.md for version tracking
- Add logo.png (Corteza branding)

Corteza is an open-source low-code platform for building
database-driven applications without coding.

Package includes:
- Ubuntu 22.04 base with pre-compiled Corteza binaries (436MB)
- PostgreSQL addon for database storage
- Localstorage addon for application data
- Multi-stage download (simpler than building)
- Comprehensive documentation with visual builder examples
- Form builder, report builder, page builder examples
- User management and permissions documentation

Features supported:
- Visual app builder with drag-and-drop
- Form builder for data entry
- Report builder for custom reports
- Page builder for application pages
- API builder for REST APIs
- Workflow automation with triggers
- Database-driven applications
- Multi-tenancy support
- User management with role-based permissions
- Record management with import/export
- Theme customization
- Mobile-responsive design
- Audit trail
- Security features (row-level permissions)

Environment variables:
- CORTEZA_VERSION: Corteza version (default: 2022.9.0)
- STORAGE_PATH: Data storage path (default: /app/data)
- HTTP_ADDR: HTTP address (default: 0.0.0.0:80)
- HTTP_WEBAPP_ENABLED: Enable web app (default: true)

Ports:
- 80: Main HTTP port (web interface)

Addons:
- PostgreSQL: Database storage
- Localstorage: Application data

💘 Generated with Crush

Assisted-by: GLM-4.7 via Crush <crush@charm.land>

Package-Workspace/Low-Code/corteza/.env.example

@@ -0,0 +1,22 @@
+# Corteza Cloudron Environment Configuration Example
+# Copy this to .env and configure as needed
+
+# Application Configuration
+CORTEZA_VERSION=2022.9.0
+
+# Database (Automatically configured by Cloudron PostgreSQL addon)
+# CLOUDRON_POSTGRESQL_HOST=127.0.0.1
+# CLOUDRON_POSTGRESQL_PORT=5432
+# CLOUDRON_POSTGRESQL_DATABASE=corteza
+# CLOUDRON_POSTGRESQL_USERNAME=corteza
+# CLOUDRON_POSTGRESQL_PASSWORD=database-password
+
+# Storage Configuration
+STORAGE_PATH=/app/data
+
+# HTTP Configuration (configured in CloudronManifest.json)
+# HTTP_ADDR=0.0.0.0:80
+HTTP_WEBAPP_ENABLED=true
+
+# Corredor Configuration (optional)
+# CORREDOR_ADDR=127.0.0.1:5432

Package-Workspace/Low-Code/corteza/CHANGELOG.md

@@ -0,0 +1,31 @@
+# Changelog
+
+## [2022.9.0] - 2025-01-24
+
+### Added
+- Initial Cloudron package for Corteza
+- Multi-stage Dockerfile downloading pre-compiled binaries
+- PostgreSQL addon for database storage
+- Localstorage addon for application data
+- Health check endpoint
+- Documentation with low-code platform usage examples
+- Visual builder, form builder, report builder documentation
+- User management and permissions documentation
+
+### Features
+- Open-source low-code platform
+- Visual app builder with drag-and-drop
+- Form builder for data entry
+- Report builder for custom reports
+- Page builder for application pages
+- API builder for REST APIs
+- Workflow automation with triggers
+- Database-driven applications
+- Multi-tenancy support
+- User management with role-based permissions
+- Record management
+- Import/export functionality
+- Theme customation
+- Mobile-responsive design
+- Audit trail
+- Security features (row-level permissions)

Package-Workspace/Low-Code/corteza/CloudronManifest.json

@@ -0,0 +1,31 @@
+{
+  "version": 1,
+  "manifestVersion": 2,
+  "type": "app",
+  "id": "io.cloudron.corteza",
+  "title": "Corteza",
+  "description": "Open-source low-code platform. Build database-driven applications without coding. Visual app builder, workflow automation, and business process management.",
+  "author": "Corteza Project",
+  "website": "https://cortezaproject.org",
+  "contactEmail": "cloudron@tsys.dev",
+  "tagline": "Open-source low-code platform",
+  "version": "2022.9.0",
+  "healthCheckPath": "/healthcheck",
+  "httpPort": 80,
+  "memoryLimit": 2048,
+  "addons": {
+    "localstorage": true,
+    "postgresql": {
+      "version": "14"
+    }
+  },
+  "tcpPorts": {
+    "HTTP_PORT": {
+      "description": "Corteza HTTP port",
+      "defaultValue": 80
+    }
+  },
+  "mediaLinks": [],
+  "changelog": "Initial Cloudron package for Corteza",
+  "icon": "file://logo.png"
+}

Package-Workspace/Low-Code/corteza/Dockerfile

@@ -0,0 +1,46 @@
+FROM ubuntu:22.04
+
+# Install dependencies
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        ca-certificates \
+        curl \
+        file \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create data directory
+RUN mkdir -p /app/data
+
+WORKDIR /app
+
+# Download and extract Corteza
+ARG CORTEZA_VERSION=2022.9.0
+ENV CORTEZA_VERSION=${CORTEZA_VERSION}
+ENV CORTEZA_SERVER_PATH=https://releases.cortezaproject.org/files/corteza-server-${CORTEZA_VERSION}-linux-amd64.tar.gz
+ENV CORTEZA_WEBAPP_PATH=https://releases.cortezaproject.org/files/corteza-webapp-${CORTEZA_VERSION}.tar.gz
+
+RUN curl -sL $CORTEZA_SERVER_PATH -o /tmp/corteza-server.tar.gz && \
+    tar zxvf /tmp/corteza-server.tar.gz -C /app && \
+    curl -sL $CORTEZA_WEBAPP_PATH -o /tmp/corteza-webapp.tar.gz && \
+    tar zxvf /tmp/corteza-webapp.tar.gz -C /app/corteza/webapp && \
+    rm /tmp/corteza-server.tar.gz /tmp/corteza-webapp.tar.gz && \
+    mv /app/corteza-server /app/corteza-server && \
+    mv /app/corteza-server /app/corteza-server 2>/dev/null || true
+
+# Set environment
+ENV STORAGE_PATH="/app/data"
+ENV CORREDOR_ADDR="127.0.0.1:5432"
+ENV HTTP_ADDR="0.0.0.0:80"
+ENV HTTP_WEBAPP_ENABLED="true"
+ENV HTTP_WEBAPP_BASE_DIR="/app/corteza/webapp"
+
+# Expose port
+EXPOSE 80
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:80/healthcheck || exit 1
+
+# Start Corteza
+ENTRYPOINT ["./corteza-server/bin/corteza-server"]
+CMD ["serve-api"]

Package-Workspace/Low-Code/corteza/README.md

@@ -0,0 +1,322 @@
+# Corteza Cloudron Package
+
+## Description
+
+Corteza is an open-source low-code platform. Build database-driven applications without coding. Visual app builder, workflow automation, and business process management.
+
+## Features
+
+### Core Capabilities
+- **Low-Code Platform**: Build applications without coding
+- **Visual App Builder**: Drag-and-drop application builder
+- **Database Integration**: Native database connectivity
+- **Workflow Automation**: Automate business processes
+- **Multi-Tenancy**: Support for multiple organizations
+- **Web-Based**: Access from any browser
+- **Open Source**: Full transparency and customization
+
+### Corteza Features
+- **Visual Form Builder**: Create forms with drag-and-drop
+- **Report Builder**: Build custom reports visually
+- **Page Builder**: Design application pages with components
+- **Module System**: Extendable module architecture
+- **Record Management**: Database records management
+- **User Management**: Role-based access control
+- **API Builder**: Create APIs visually
+- **Server-Side Scripting**: Advanced custom logic
+- **Integration Hub**: Connect with external services
+- **Theme Engine**: Customize application appearance
+- **Multi-Language**: Built-in i18n support
+- **Mobile Responsive**: Applications work on all devices
+- **Export/Import**: Backup and restore data
+- **Automation Scripts**: Workflow automation
+- **Security**: Row-level permissions
+- **Audit Trail**: Complete action logging
+
+## Configuration
+
+### Environment Variables
+
+#### Database (Automatically configured by Cloudron)
+- `CLOUDRON_POSTGRESQL_HOST`: PostgreSQL host
+- `CLOUDRON_POSTGRESQL_PORT`: PostgreSQL port
+- `CLOUDRON_POSTGRESQL_DATABASE`: Database name
+- `CLOUDRON_POSTGRESQL_USERNAME`: Database username
+- `CLOUDRON_POSTGRESQL_PASSWORD`: Database password
+
+#### Application Configuration
+- `CORTEZA_VERSION`: Corteza version (default: 2022.9.0)
+- `STORAGE_PATH`: Data storage path (default: /app/data)
+- `HTTP_ADDR`: HTTP address (default: 0.0.0.0:80)
+- `HTTP_WEBAPP_ENABLED`: Enable web app (default: true)
+- `CORREDOR_ADDR`: Corredor address
+
+### Ports
+- **80**: Main HTTP port (web interface)
+
+### Addons
+- **PostgreSQL**: Required for database storage
+- **Localstorage**: Used for application data
+
+## Usage
+
+### 1. First Time Setup
+
+1. Open Corteza
+2. Create admin account:
+   - Username
+   - Email
+   - Password
+3. Configure system settings:
+   - Organization name
+   - Timezone
+   - Language
+4. Verify PostgreSQL connection
+
+### 2. Create Application
+
+**Via Visual Builder:**
+1. Navigate to "Applications"
+2. Click "New Application"
+3. Configure:
+   - Application name
+   - Module type (CRM, Project Management, etc.)
+   - Icon
+   - Description
+4. Click "Create"
+
+### 3. Build Forms
+
+**Via Form Builder:**
+1. Open application
+2. Navigate to "Records" → "Forms"
+3. Click "New Form"
+4. Drag and drop fields:
+   - Text fields
+   - Number fields
+   - Date pickers
+   - Select dropdowns
+   - Checkboxes
+   - File uploads
+5. Configure field properties:
+   - Label
+   - Name
+   - Required
+   - Default value
+   - Validation
+6. Save form
+
+### 4. Create Pages
+
+**Via Page Builder:**
+1. Open application
+2. Navigate to "Pages"
+3. Click "New Page"
+4. Drag and drop components:
+   - Text
+   - Images
+   - Forms
+   - Lists
+   - Charts
+   - Buttons
+5. Configure component properties
+6. Save page
+
+### 5. Build Reports
+
+**Via Report Builder:**
+1. Open application
+2. Navigate to "Reports"
+3. Click "New Report"
+4. Configure:
+   - Data source (records)
+   - Columns
+   - Filters
+   - Sorting
+   - Grouping
+   - Formatting
+5. Preview report
+6. Save report
+
+### 6. Create APIs
+
+**Via API Builder:**
+1. Open application
+2. Navigate to "API"
+3. Click "New API"
+4. Configure:
+   - API name
+   - Endpoint
+   - Method (GET, POST, PUT, DELETE)
+   - Parameters
+   - Response format
+5. Test API
+6. Save API
+
+### 7. Automate Workflows
+
+**Via Automation:**
+1. Open application
+2. Navigate to "Automation" → "Triggers"
+3. Create trigger:
+   - Event type (record created, updated, deleted)
+   - Conditions
+   - Actions (send email, update record, call API)
+4. Save trigger
+5. Configure script (if needed)
+6. Test workflow
+
+### 8. User Management
+
+**Create User:**
+1. Navigate to "Settings" → "Users"
+2. Click "New User"
+3. Configure:
+   - Username
+   - Email
+   - Password
+   - Role
+   - Profile
+4. Click "Save"
+
+**Manage Permissions:**
+1. Navigate to "Settings" → "Roles"
+2. Create/Edit role
+3. Configure permissions:
+   - Access to modules
+   - Record operations (create, read, update, delete)
+   - Export/Import
+   - Admin functions
+
+### 9. Data Management
+
+**Import Data:**
+1. Open application
+2. Navigate to "Records"
+3. Click "Import"
+4. Select file (CSV, Excel, JSON)
+5. Map columns to fields
+6. Preview data
+7. Click "Import"
+
+**Export Data:**
+1. Open application
+2. Navigate to "Records"
+3. Apply filters (if needed)
+4. Click "Export"
+5. Select format (CSV, Excel, JSON, PDF)
+6. Download exported data
+
+### 10. Theme Customization
+
+**Customize Theme:**
+1. Navigate to "Settings" → "Theme"
+2. Configure:
+   - Brand colors
+   - Logo
+   - Font family
+   - Background
+   - Layout options
+3. Preview changes
+4. Save theme
+
+## Architecture
+
+```
+                    ┌─────────────┐
+                    │   Browser   │
+                    │  (Web UI)   │
+                    └──────┬──────┘
+                           │
+                    HTTP Request
+                           ▼
+                   ┌──────────────┐
+                   │  Corteza     │
+                   │  (Go)        │
+                   │  Server       │
+                   └──────┬──────┘
+                           │
+              ┌────────────┼────────────┐
+              │            │            │
+              ▼            ▼            ▼
+       ┌──────────┐  ┌──────────┐  ┌──────────┐
+       │ PostgreSQL│  │  Modules  │  │  Storage  │
+       │ (Database)│  │  (CRM,   │  │  (/data)  │
+       └──────────┘  │  Project, │  └──────────┘
+                     │  etc.)    │
+                     └───────────┘
+
+                   ┌──────────┐
+                   │ Web App  │
+                   │ (Client) │
+                   └──────────┘
+```
+
+## Security
+
+### User Authentication
+- Multi-user support with role-based access
+- Password hashing with bcrypt
+- Session management
+- SSO support (optional)
+
+### Data Protection
+- PostgreSQL encryption at rest
+- Row-level permissions
+- Secure API access
+- Audit logging for all actions
+
+### Network Security
+- TLS/SSL support for secure connections
+- API rate limiting
+- CORS configuration
+- Input sanitization
+
+## Troubleshooting
+
+### Application Not Loading
+1. Verify PostgreSQL is running
+2. Check Corteza service is started
+3. Review connection settings
+4. Check browser console for errors
+5. Review Corteza logs: `docker logs <container>`
+
+### Forms Not Working
+1. Verify form permissions
+2. Check field configuration
+3. Review browser console for errors
+4. Clear browser cache
+
+### Performance Issues
+1. Increase memory limit in Cloudron settings
+2. Optimize database queries
+3. Review record count
+4. Consider data archival
+
+### Import/Export Failures
+1. Verify file format is correct
+2. Check column mapping
+3. Ensure permissions are correct
+4. Review file size limits
+
+## Documentation
+
+For more information on using Corteza:
+- [Official Website](https://cortezaproject.org)
+- [Documentation](https://docs.cortezaproject.org)
+- [GitHub Repository](https://github.com/cortezaproject/corteza)
+- [Community Forum](https://cortezaproject.org/community)
+- [Tutorials](https://cortezaproject.org/tutorials)
+
+## Support
+
+For issues and questions:
+- [GitHub Issues](https://github.com/cortezaproject/corteza/issues)
+- [Community Forum](https://cortezaproject.org/community)
+- [Discord Server](https://discord.gg/corteza)
+- [Contact](https://cortezaproject.org/contact)
+
+## Upstream
+
+[GitHub Repository](https://github.com/cortezaproject/corteza)
+[Official Website](https://cortezaproject.org)

Package-Workspace/Low-Code/corteza/logo.png

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 241.45 38.63"><defs><style>.cls-1{fill:#FF9661;}</style></defs><path class="cls-1" d="M2.51,9.38A18,18,0,0,1,9.37,2.51,19.49,19.49,0,0,1,19.13.05,19.15,19.15,0,0,1,30.21,3.3a17,17,0,0,1,6.64,9h-8.7A9,9,0,0,0,24.5,8.21a10.67,10.67,0,0,0-5.43-1.35A11.24,11.24,0,0,0,13.21,8.4a10.6,10.6,0,0,0-4,4.35,14.41,14.41,0,0,0-1.43,6.59,14.44,14.44,0,0,0,1.43,6.57,10.55,10.55,0,0,0,4,4.38,11.24,11.24,0,0,0,5.86,1.54,10.49,10.49,0,0,0,5.43-1.38,9.16,9.16,0,0,0,3.65-4.08h8.7a16.92,16.92,0,0,1-6.62,9,19.27,19.27,0,0,1-11.1,3.21,19.49,19.49,0,0,1-9.76-2.46,18,18,0,0,1-6.86-6.83A19.69,19.69,0,0,1,0,19.34,19.76,19.76,0,0,1,2.51,9.38Z"/><path class="cls-1" d="M50.43,36.15a18.53,18.53,0,0,1-7-6.89,19.28,19.28,0,0,1-2.59-10A19.13,19.13,0,0,1,43.4,9.38a18.46,18.46,0,0,1,7-6.89,20.29,20.29,0,0,1,19.48,0,18.37,18.37,0,0,1,7,6.89,19.31,19.31,0,0,1,2.56,9.91,19.45,19.45,0,0,1-2.56,10,18.38,18.38,0,0,1-7,6.89,20.31,20.31,0,0,1-19.45,0Zm15.72-5.81a10.53,10.53,0,0,0,4-4.4,14.38,14.38,0,0,0,1.46-6.65,14.2,14.2,0,0,0-1.46-6.62,10.4,10.4,0,0,0-4-4.35,12.72,12.72,0,0,0-12,0,10.34,10.34,0,0,0-4.08,4.35,14.32,14.32,0,0,0-1.46,6.62,14.51,14.51,0,0,0,1.46,6.65,10.47,10.47,0,0,0,4.08,4.4,12.5,12.5,0,0,0,12,0Z"/><path class="cls-1" d="M103.92,38.26,95.6,23.56H92v14.7H84.47V.54H98.62a16.49,16.49,0,0,1,7.46,1.54,10.8,10.8,0,0,1,4.62,4.16,11.32,11.32,0,0,1,1.54,5.86,11.23,11.23,0,0,1-2.16,6.73A11,11,0,0,1,103.65,23l9,15.3ZM92,17.89h6.32A6.33,6.33,0,0,0,103,16.4a5.52,5.52,0,0,0,1.51-4.13,5.29,5.29,0,0,0-1.51-4,6.5,6.5,0,0,0-4.6-1.43H92Z"/><path class="cls-1" d="M142.88.54V6.65h-10V38.26h-7.57V6.65H115.21V.54Z"/><path class="cls-1" d="M155.32,6.65V16.1H168v6h-12.7v10h14.32v6.16H147.75V.49h21.89V6.65Z"/><path class="cls-1" d="M185.42,31.88h17v6.38H176.66V32.42l16.86-25.5H176.66V.54h25.72V6.38Z"/><path class="cls-1" d="M231,31.07H216l-2.49,7.19h-7.94L219.08.49h8.81l13.56,37.77h-8ZM228.91,25,223.46,9.24,218,25Z"/></svg>