added docs

docs/external-redirects.md

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+# External Redirects
+
+The supported external redirect paths in the application.
+
+## Supported Redirects
+
+### Pipeline SDK Redirects
+
+Redirecting from Pipeline SDK output URLs to internal dashboard routes.
+
+#### Supported URL Patterns
+
+1. **Experiment Details**
+   ```
+   /external/pipelinesSdk/{namespace}/#/experiments/details/{experimentId}
+   ```
+   Redirects to the internal experiment runs route for the specified experiment.
+
+2. **Run Details**
+   ```
+   /external/pipelinesSdk/{namespace}/#/runs/details/{runId}
+   ```
+   Redirects to the internal pipeline run details route for the specified run.