Fabric Lakehouse Skill

This is new skill for Copilot agent to work with fabric Lakehouse

skills/fabric-lakehouse/references/getdata.md

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+### Data Factory Integration
+
+Microsoft Fabric includes Data Factory for ETL/ELT orchestration:
+
+- **180+ connectors** for data sources
+- **Copy activity** for data movement
+- **Dataflow Gen2** for transformations
+- **Notebook activity** for Spark processing
+- **Scheduling** and triggers
+
+### Pipeline Activities
+
+| Activity | Description |
+|----------|-------------|
+| Copy Data | Move data between sources and Lakehouse |
+| Notebook | Execute Spark notebooks |
+| Dataflow | Run Dataflow Gen2 transformations |
+| Stored Procedure | Execute SQL procedures |
+| ForEach | Loop over items |
+| If Condition | Conditional branching |
+| Get Metadata | Retrieve file/folder metadata |
+| Lakehouse Maintenance | Optimize and vacuum Delta tables |
+
+### Orchestration Patterns
+
+```
+Pipeline: Daily_ETL_Pipeline
+├── Get Metadata (check for new files)
+├── ForEach (process each file)
+│   ├── Copy Data (bronze layer)
+│   └── Notebook (silver transformation)
+├── Notebook (gold aggregation)
+└── Lakehouse Maintenance (optimize tables)
+```
+
+---