Fixing agentic workflows

[aaronpowell]

Summary

Track and coordinate work to restore and improve Awesome Copilot agentic workflows, including an AW upgrade and compatibility checks.

Context

Current workflow failures are increasing maintainer overhead and reducing repository quality controls (duplication and staleness checks). This issue acts as the single parent tracker for the remediation effort.

Goals

• Restore reliability of key agentic workflows
• Re-enable automation that reduces duplication and stale content
• Upgrade AW and confirm compatibility across impacted workflows

Sub-issues

• Fix Learning Hub update workflow #2077 Fix PR duplication detection workflow
• Upgrade AW and validate workflow compatibility #2078 Fix weekly duplication reporting workflow
• Fix weekly duplication reporting workflow #2079 Fix Learning Hub update workflow
• Fix CLI sync workflow #2080 Fix CLI sync workflow
• Fix stale-content detection workflow #2081 Fix stale-content detection workflow
• Fix PR duplication detection workflow #2082 Upgrade AW and validate workflow compatibility

Definition of done

• All sub-issues are closed
• Impacted workflows run successfully on staged
• Required docs/config updates are merged
• No known blocking workflow failures remain in this scope