Add Kubeflow Ecosystem documentation with lifecycle mapping and architecture diagrams

[Copilot]

Adds comprehensive documentation covering Kubeflow's modular AI platform architecture, component ecosystem, and end-to-end ML lifecycle integration.

Changes

• New file: KUBEFLOW_ECOSYSTEM_OVERVIEW.md in repository root
  • ASCII diagrams for architecture visualization and component relationships
  • AI lifecycle stage breakdown: data prep → development → training → optimization → registry → serving
  • Project-to-lifecycle mapping table (Notebooks, Pipelines, Trainer, Katib, KServe, Feast, Spark Operator)
  • SDK reference links (Pipelines, Trainer, Katib, KServe, Feast)
  • Extensibility architecture showing component interconnections
  • Official documentation and resource links

Content Structure

1. Kubeflow Ecosystem Diagram (ASCII + image refs)
2. AI Lifecycle Stages (development vs production phases)
3. Kubeflow Projects Mapping (7 lifecycle stages)
4. Dashboard Examples
5. Interfaces & SDKs
6. Extensibility Diagram
7. Resources & References

The documentation emphasizes Kubeflow's modular nature and provides both immediate visual understanding (ASCII diagrams) and references to official imagery.

Original prompt

Create comprehensive Kubeflow Ecosystem documentation that provides a versatile and flexible overview of the Kubeflow AI platform.

Requirements

Create a new documentation file KUBEFLOW_ECOSYSTEM_OVERVIEW.md with the following content:

# Kubeflow Ecosystem: A Versatile & Flexible AI Platform

The **Kubeflow Ecosystem** provides a modular, scalable, and extensible approach to building AI platforms on Kubernetes.

---

## 1. Kubeflow Ecosystem Diagram

**A. ASCII Overview**

```
+-------------------------------------------------------------------------------+
|                             Kubernetes Cluster                                |
|   +----------------------  Kubeflow Central Dashboard   -------------------+   |
|   |        +-----------------------------------------+                   |   |
|   |        |            Kubeflow Ecosystem           |                   |   |
|   |        | +------------+   +---------+   +------+ |                   |   |
|   |        | | Notebooks  |   | Pipelines|   |KServe| | ...               |   |
|   |        | +------------+   +---------+   +------+ |                   |   |
|   |        +-----------------------------------------+                   |   |
|   +--------------------------------------------------------------------+   |
+----------------------------------------------------------------------------+
```
**B. Image Reference**

![Kubeflow Ecosystem Diagram](https://www.kubeflow.org/docs/images/architecture.svg)

---

## 2. AI Lifecycle Stages

**A. ASCII Diagram**

```
[Raw Data]
     |
     v
[Data Preparation]
     |
     v
[Model Development]
     |
     v
[Model Training]
     |
     v
[Model Optimization]
     |
     v
[Model Registry]
     |
     v
[Model Serving & Monitoring]
```

**B. Phases**

```
|-- Development ---------------------||---- Production ---------|
       (preparation, dev, training)      (registry, serving)
```

**C. Image Reference**

![AI Lifecycle Stages](https://raw.githubusercontent.com/kubeflow/website/master/content/en/docs/images/ai-lifecycle-stages.png)

---

## 3. Kubeflow Projects Across the AI Lifecycle

**A. Mapping Table**

| Lifecycle Stage     | Kubeflow Project(s)                             |
|---------------------|-------------------------------------------------|
| Data Preparation    | Spark Operator, Feast                           |
| Model Development   | Notebooks                                       |
| Model Training      | Trainer                                         |
| Model Optimization  | Katib, Model Registry                           |
| Model Registry      | Model Registry                                  |
| Model Serving       | KServe, Feast                                   |
| Orchestration       | Pipelines                                       |

**B. ASCII Mapping**

```
          +------------------+
          |   Data Prep      |---[Spark, Feast]
          +------------------+
                    |
          +------------------+
          |  Development     |---[Notebooks]
          +------------------+
                    |
          +------------------+
          |    Training      |---[Trainer]
          +------------------+
                    |
          +------------------+
          |   Optimization   |---[Katib, Registry]
          +------------------+
                    |
          +------------------+
          |    Serving       |---[KServe, Feast]
          +------------------+
                    |
          +------------------+
          |  Orchestration   |---[Pipelines]
          +------------------+
```

**C. Image Reference**

![Kubeflow Projects in AI Lifecycle](https://raw.githubusercontent.com/kubeflow/website/master/content/en/docs/images/projects-in-lifecycle.png)

---

## 4. Kubeflow Dashboard Example

**A. Image Placeholder**

![Kubeflow Central Dashboard](https://www.kubeflow.org/docs/images/central-dashboard.png)
*Replace with actual screenshot from your installation as needed.*

---

## 5. Interfaces and Extensibility

Access Kubeflow via:

- **Central Dashboard (web UI)**
- **Python SDKs:**  
  - [Pipelines SDK](https://www.kubeflow.org/docs/components/pipelines/v2/sdk/)
  - [Trainer SDK](https://github.com/kubeflow/training-operator/tree/master/sdk/python)
  - [Katib SDK](https://www.kubeflow.org/docs/components/katib/sdk/)
  - [KServe SDK](https://kserve.github.io/website/)
  - [Feast SDK](https://docs.feast.dev/reference/python-sdk/)

---

## 6. Extensibility Diagram (ASCII)

```
           +---------+     +----------+    +-----------+
           |  Feast  |<--->| Pipelines|<-->| Katib     |
           +---------+     +----------+    +-----------+
                |                |               |
           +-----------+    +--------+    +-------------+
           |  Notebooks|    |Trainer |    |   KServe    |
           +-----------+    +--------+    +-------------+
                                |
                          +-...

</details>



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