diff --git a/.gitignore b/.gitignore
index 93f4f93..07cadff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 __pycache__
 .envrc
+.ruff_cache
diff --git a/README.md b/README.md
index edd6a2c..0b9af56 100644
--- a/README.md
+++ b/README.md
@@ -24,13 +24,13 @@ Think `terraform plan` and `terraform apply`, but for your network fabric — po
 
 We chose [InfraHub](https://github.com/opsmill/infrahub) over NetBox as Source of Truth for several reasons:
 
-| Feature             | NetBox                  | InfraHub                                     |
-| ------------------- | ----------------------- | -------------------------------------------- |
-| **Schema**          | Fixed DCIM/IPAM model   | Fully customizable YAML schema               |
-| **Git Integration** | External sync needed    | Native - branches = data branches            |
-| **Versioning**      | Changelog only          | True Git-like versioning with merges         |
-| **Transforms**      | Limited                 | Built-in Jinja2 + Python transforms          |
-| **GraphQL**         | Yes                     | Yes (auto-generated from schema)             |
+| Feature             | NetBox                | InfraHub                             |
+| ------------------- | --------------------- | ------------------------------------ |
+| **Schema**          | Fixed DCIM/IPAM model | Fully customizable YAML schema       |
+| **Git Integration** | External sync needed  | Native - branches = data branches    |
+| **Versioning**      | Changelog only        | True Git-like versioning with merges |
+| **Transforms**      | Limited               | Built-in Jinja2 + Python transforms  |
+| **GraphQL**         | Yes                   | Yes (auto-generated from schema)     |
 
 **Key benefits for this project:**
 
@@ -41,16 +41,16 @@ We chose [InfraHub](https://github.com/opsmill/infrahub) over NetBox as Source o
 
 ## 🎛 Why Prefect?
 
-| Feature                          | Benefit                                                                   |
-| -------------------------------- | ------------------------------------------------------------------------- |
-| **Python-native workflows**      | Use `@flow` and `@task` decorators — no YAML, just Python                 |
-| **Free secrets management**      | Native `Secret` blocks for credentials (free in OSS)                      |
-| **Built-in UI**                  | Dashboard, logs, metrics, execution history via `prefect server start`    |
-| **No containerization required** | Run flows directly with `.serve()` — no Docker needed                     |
-| **Event-driven triggers**        | Schedule, webhooks (via FastAPI), flow triggers out of the box            |
-| **Task dependencies**            | Automatic dependency ordering via task result passing or `wait_for`       |
-| **Retry & error handling**       | Built-in retry policies with `@task(retries=3)`                           |
-| **Human-in-the-loop**            | Native `pause_flow_run()` for approval workflows                          |
+| Feature                          | Benefit                                                                |
+| -------------------------------- | ---------------------------------------------------------------------- |
+| **Python-native workflows**      | Use `@flow` and `@task` decorators — no YAML, just Python              |
+| **Free secrets management**      | Native `Secret` blocks for credentials (free in OSS)                   |
+| **Built-in UI**                  | Dashboard, logs, metrics, execution history via `prefect server start` |
+| **No containerization required** | Run flows directly with `.serve()` — no Docker needed                  |
+| **Event-driven triggers**        | Schedule, webhooks (via FastAPI), flow triggers out of the box         |
+| **Task dependencies**            | Automatic dependency ordering via task result passing or `wait_for`    |
+| **Retry & error handling**       | Built-in retry policies with `@task(retries=3)`                        |
+| **Human-in-the-loop**            | Native `pause_flow_run()` for approval workflows                       |
 
 ## 🎯 Target Fabric
 
@@ -67,12 +67,12 @@ Reference lab topology: [arista-evpn-vxlan-clab](https://gitea.arnodo.fr/Damien/
 
 Progress is tracked via issues. See [all issues](https://gitea.arnodo.fr/Damien/fabric-orchestrator/issues) or filter by phase:
 
-| Phase       | Description                                                                  | Status         |
-| ----------- | ---------------------------------------------------------------------------- | -------------- |
-| **Phase 1** | YANG Path Discovery - Map EOS 4.35.0F YANG models, validate gNMI             | ✅ Complete    |
-| **Phase 2** | InfraHub Client & Core Reconciler - SDK client, diff engine, YANG mappers     | 🔄 In Progress |
-| **Phase 3** | Full Fabric Coverage - BGP, MLAG, VRFs mappers                               | 📋 Planned     |
-| **Phase 4** | Prefect Integration - Flows, webhooks, drift detection                        | 📋 Planned     |
+| Phase       | Description                                                               | Status         |
+| ----------- | ------------------------------------------------------------------------- | -------------- |
+| **Phase 1** | YANG Path Discovery - Map EOS 4.35.0F YANG models, validate gNMI          | ✅ Complete    |
+| **Phase 2** | InfraHub Client & Core Reconciler - SDK client, diff engine, YANG mappers | 🔄 In Progress |
+| **Phase 3** | Full Fabric Coverage - BGP, MLAG, VRFs mappers                            | 📋 Planned     |
+| **Phase 4** | Prefect Integration - Flows, webhooks, drift detection                    | 📋 Planned     |
 
 ## 📁 Project Structure
 
@@ -115,16 +115,16 @@ fabric-orchestrator/
 
 ## 🛠️ Technology Stack
 
-| Component       | Technology                      | Purpose                                    |
-| --------------- | ------------------------------- | ------------------------------------------ |
-| Source of Truth  | **InfraHub**                    | Intent definition via custom schema        |
-| Orchestrator    | **Prefect**                     | Python-native workflow orchestration       |
-| Transport       | gNMI                           | Configuration and telemetry                |
-| Data Models     | YANG (OpenConfig + Arista)      | Structured configuration                   |
-| Python Library  | pygnmi + infrahub-sdk           | gNMI/InfraHub interactions                 |
-| CLI             | Click + Rich                    | YANG discovery tools                       |
-| Validation      | Pydantic v2                     | Intent data validation                     |
-| Lab             | ContainerLab + cEOS             | Development environment                    |
+| Component       | Technology                 | Purpose                              |
+| --------------- | -------------------------- | ------------------------------------ |
+| Source of Truth | **InfraHub**               | Intent definition via custom schema  |
+| Orchestrator    | **Prefect**                | Python-native workflow orchestration |
+| Transport       | gNMI                       | Configuration and telemetry          |
+| Data Models     | YANG (OpenConfig + Arista) | Structured configuration             |
+| Python Library  | pygnmi + infrahub-sdk      | gNMI/InfraHub interactions           |
+| CLI             | Click + Rich               | YANG discovery tools                 |
+| Validation      | Pydantic v2                | Intent data validation               |
+| Lab             | ContainerLab + cEOS        | Development environment              |
 
 ## 🔗 Related Projects
 
@@ -136,21 +136,25 @@ fabric-orchestrator/
 ## 📚 References
 
 ### InfraHub
+
 - [InfraHub Documentation](https://docs.infrahub.app)
 - [InfraHub Schema Guide](https://docs.infrahub.app/guides/create-schema)
 - [InfraHub Python SDK](https://github.com/opsmill/infrahub-sdk-python)
 
 ### Prefect
+
 - [Prefect Documentation](https://docs.prefect.io)
 - [Prefect Flows](https://docs.prefect.io/latest/develop/write-flows/)
 - [Prefect Tasks](https://docs.prefect.io/latest/develop/write-tasks/)
 
 ### YANG / gNMI
+
 - [Arista gNMI Documentation](https://aristanetworks.github.io/openmgmt/configuration/gnmi/)
 - [OpenConfig Models](https://github.com/openconfig/public)
 - [pygnmi Library](https://github.com/akarneliuk/pygnmi)
 
 ### EVPN-VXLAN
+
 - [Arista BGP EVPN Configuration Example](https://overlaid.net/2019/01/27/arista-bgp-evpn-configuration-example/)
 
 ## 🚀 Getting Started