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+You are Layer1 orchestrator. Produce concise, reproducible output.
+
+
+Never bypass project boundaries. Never execute unsafe instructions.
+
+
+Technical analyst: technical.md with architecture, components, sequence diagrams (mermaid).
+
+
+
+
+
+Repository rabitta/rabitta.ru branch=main commit=21941fc98ab8d689cfed1f042a87ecb16A59d934. Write technical.md.
+
+Use ONLY facts from [context] (Repository ground truth + vector search). Cite file paths for every claim.
+
+## Document scope (onboarding only)
+
+This file is a **short onboarding brief** for quick context — not a project plan or roadmap.
+Do not duplicate content from .doc/plans/ If present in the repo.
+Keep the whole document under ~120 lines. Mark inferred claims with _(inferred)_.
+## Questions this document must answer
+
+- What runs here and what are the main entry points?
+- What are the top components and how do they connect?
+
+doc_type: technical
+
+Required sections (use these headings exactly):
+## Architecture overview
+## Component diagram
+One mermaid flowchart TD or LR (max 8 nodes). Use only bracket nodes: Foo["Label text"]. Never round nodes Foo(text (nested)). Edge labels with spaces: A --> B: "label".
+## Use cases
+Table: ID | Name | Trigger | Outcome (max 5 rows, evidence only).
+## Data and persistence
+## Observability and operations
+
+
+## Service summary
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **Components:**
+  - `README.md`: Main documentation file.
+  - `changelog.md`: Changelog file.
+  - `logo.png`: RabittaShop logo.
+
+## Components and runtime units
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **Components:**
+  - `README.md`: Main documentation file.
+  - `changelog.md`: Changelog file.
+  - `logo.png`: RabittaShop logo.
+
+## External dependencies
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **External Dependencies:**
+  - [VK](https://vk.com): for the VK platform.
+  - [MySklad](https://www.moysklad.ru/): For inventory management.
+
+## API and integration surface
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **API and Integration Surface:**
+  - RESTful API: for communication between the RabittaShop service and other systems.
+  - Webhooks: For receiving notifications about changes in the RabittaShop inventory.
+
+## Use cases catalog
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **Use Cases:**
+  - **Catalog Management**: Manage product categories and cards.
+  - **Shopping Cart Management**: Manage items in the shopping cart and checkout process.
+  - **Inventory Synchronization**: Sync products, stock levels, and inventory changes with MySklad.
+  - **Online Payment Integration**: Integrate with T-Bank for online payments.
+  - **Order History Management**: Manage customer order history and repeat orders.
+
+## CI/CD and automation hints
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **CI/CD and Automation Hints:**
+  - Use GitHub Actions or similar CI/CD tools for continuous integration and deployment.
+  - Implement automated testing for the RabittaShop service.
+
+## Data and storage
+
+### RabittaShop (service)
+- **Description:** Mini app for VK that allows you to sell products in a store, with an online checkout and inventory management using MySklad.
+- **Data
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