added claude generated readme.

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+This is a microservices-based Telegram bot system for text monitoring and notifications. The system consists of 4 main services that communicate via RabbitMQ:
+
+- **telegram-listener**: Scans open Telegram channels and chats for messages
+- **telegram-client**: Bot interface for user interactions 
+- **text-matcher**: Matches incoming messages against user subscriptions
+- **users**: Manages users and their preferences
+
+## Architecture
+
+The services follow a message bus pattern using RabbitMQ for async communication:
+- TelegramListener publishes MessageReceived events
+- TextMatcher subscribes to MessageReceived, publishes TextMatchCreated/TextMatchMatched events
+- TelegramClient subscribes to TextMatchMatched events and notifies users
+
+Each service follows Clean Architecture with separate projects for:
+- Host (API/entry point)
+- AppServices (business logic)
+- Core (shared utilities)
+- Api.Contracts (REST API contracts)
+- Async.Api.Contracts (event contracts)
+- Persistence (database layer, where applicable)
+- Migrator (database migrations, where applicable)
+
+## Development Commands
+
+### Running the System
+```bash
+# Start all services with Docker Compose
+docker-compose up
+
+# Start individual services for development
+cd telegram-client && dotnet run --project src/Nocr.TelegramClient.Host
+cd telegram-listener && dotnet run --project src/Nocr.TelegramListener.Host  
+cd text-matcher && dotnet run --project src/Nocr.TextMatcher.Host
+cd users && dotnet run --project src/Nocr.Users.Host
+```
+
+### Building
+```bash
+# Build individual services
+cd <service-name> && dotnet build
+
+# Build specific projects
+dotnet build src/Nocr.<ServiceName>.Host
+```
+
+### Testing
+```bash
+# Run unit tests (only text-matcher has tests currently)
+cd text-matcher && dotnet test
+```
+
+### Database Migrations
+
+For text-matcher and users services:
+```bash
+# Add new migration (from service root directory)
+cd text-matcher && ./src/Nocr.TextMatcher.Migrator/AddMigration.sh MyMigrationName
+cd users && ./src/Nocr.Users.Migrator/AddMigration.sh MyMigrationName
+
+# Apply migrations (handled automatically by migrator containers in docker-compose)
+```
+
+## Configuration
+
+Services use layered appsettings configuration:
+- `appsettings.json` - base settings
+- `appsettings.Development.json` - local development
+- `appsettings.DockerCompose.json` - Docker Compose environment  
+- `appsettings.protected.json` - sensitive settings (not in repo)
+
+## Service Ports
+
+When running with docker-compose:
+- telegram-client: 4999
+- telegram-listener: 5000  
+- text-matcher: 5001
+- users: 4998
+- RabbitMQ: 5672 (AMQP), 15672 (Management UI)
+- MariaDB: 3306 (text-matcher), 3307 (users)
+
+## Key Technologies
+
+- .NET 8
+- ASP.NET Core Web APIs
+- Entity Framework Core with MariaDB
+- WTelegramClient for Telegram API
+- Rebus for message bus (RabbitMQ)
+- Docker & Docker Compose for containerization