examples: add pipeline task example

Author: OgeonX-Ai

docs/examples/pipeline-task.md

@@ -0,0 +1,30 @@
+# Example: Pipeline Task
+
+## Goal
+
+Repair a failing workflow using AI-OS.
+
+## Loop
+
+Pipeline repair loop.
+
+## Steps
+
+1. Read the failing job name.
+2. Read the relevant log section.
+3. Classify the failure.
+4. Identify the cause.
+5. Make the smallest correction.
+6. Run the local or workflow check.
+7. Report evidence.
+
+## Evidence format
+
+```text
+Workflow:
+Job:
+Failure class:
+Cause:
+Change:
+Verification:
+```