[Campaign] Go file size reduction

[mnkiefer]

Project Board URL

https://github.com/orgs/githubnext/projects/64

Campaign Goal

Systematically reduce oversized Go files to improve maintainability.

Additional Context (Optional)

Success: all files ≤800 LOC, maintain coverage, no regressions.

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🤖 AI Agent Instructions

This issue has been assigned to an AI agent for campaign design. The agent will:

1. Parse the campaign requirements from the information provided above
2. Generate a NEW campaign specification file (.campaign.md) with a unique campaign ID
3. Create a pull request with the new campaign file at .github/workflows/(campaign-id).campaign.md

IMPORTANT: The agent will create a NEW campaign file. Even if similar campaign files exist, the agent will NOT modify existing campaigns.

The campaign specification will include:

• Campaign ID, name, and description
• Project board URL for tracking
• Workflow definitions
• Ownership and governance policies
• Risk level and approval requirements

Next Steps:

• The AI agent will analyze your requirements and create a comprehensive campaign spec
• Review the generated PR when it's ready
• Merge the PR to activate your campaign