Add field-definitions support to create-project configuration

[Copilot]

Campaign generator workflows specified field definitions in update-project config, but fields are only created automatically when specified in create-project config. This caused created projects to have no custom fields.

Changes

Core implementation:

• Added FieldDefinitions field to CreateProjectsConfig struct
• Updated parseCreateProjectsConfig to parse field-definitions (supports both field-definitions and field_definitions)
• Updated config generation to include field_definitions in project handler config
• Updated JSON schema to allow field-definitions property in create-project

Campaign generator:

• Moved field definitions from UpdateProjects to CreateProjects in buildGeneratorSafeOutputs()
• Updated renderCampaignGeneratorMarkdown() to render field-definitions for create-project
• Updated .github/workflows/agentic-campaign-generator.md with corrected configuration

Testing:

• Added tests for field definition parsing, underscore variant support, and combined views + fields

Example

Before:

safe-outputs:
  create-project:
    views: [...]
  update-project:
    field-definitions:  # Wrong location - fields not created with project
      - name: "Campaign Id"
        data-type: "TEXT"

After:

safe-outputs:
  create-project:
    views: [...]
    field-definitions:  # Correct location - fields created with project
      - name: "Campaign Id"
        data-type: "TEXT"
      - name: "Priority"
        data-type: "SINGLE_SELECT"
        options: ["High", "Medium", "Low"]

Campaign projects now have all 6 required fields (Campaign Id, Worker Workflow, Priority, Size, Start Date, End Date) created automatically.

Original prompt

Analyze and test campaign generator logic for robustness. Currently create projects get have no createed fields, although update-project is included.

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