Add comprehensive integration spec and fix validation without explicit defaults

What does this MR do and why?

• Add comprehensive integration spec for ciPipelineCreationInputs GraphQL query with:
  • All input types (string, number, boolean)
  • String variations (description, options, regex)
  • Required vs optional inputs
  • Rules-based inputs
  • Verifies all fields are properly returned as hashes
• Fix validation for rules-based inputs without explicit defaults. When a rule matches but has options without a default value, auto-use the first option as the default. This prevents validation errors while maintaining backward compatibility.

I used the following config to stress test the feature:

With a valid config:

spec:
  inputs:
    # Level 1: Base selections
    cloud_provider:
      options: ['aws', 'gcp', 'azure']
      default: 'aws'

    environment:
      options: ['development', 'staging', 'production']
      default: 'development'

    deployment_type:
      options: ['rolling', 'blue_green', 'canary']
      default: 'rolling'

    # Level 2: Always has options regardless of selections
    instance_type:
      rules:
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'development'
          options: ['t3.micro', 't3.small']
          default: 't3.micro'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'staging'
          options: ['t3.medium', 't3.large']
          default: 't3.medium'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production'
          options: ['t3.xlarge', 't3.2xlarge']
          default: 't3.xlarge'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'development'
          options: ['e2-micro', 'e2-small']
          default: 'e2-micro'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'staging'
          options: ['e2-small', 'e2-medium']
          default: 'e2-small'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'production'
          options: ['e2-standard-4', 'e2-standard-8']
          default: 'e2-standard-4'
        - if: $[[ inputs.cloud_provider ]] == 'azure' && $[[ inputs.environment ]] == 'development'
          options: ['Standard_B1s', 'Standard_B1ms']
          default: 'Standard_B1s'
        - if: $[[ inputs.cloud_provider ]] == 'azure' && $[[ inputs.environment ]] == 'staging'
          options: ['Standard_B2s', 'Standard_B2ms']
          default: 'Standard_B2s'
        # Catch-all for azure production or any other combo
        - options: ['Standard_D2s_v3', 'Standard_D4s_v3']
          default: 'Standard_D2s_v3'

    # Level 3: Multi-condition with full coverage
    resource_tier:
      rules:
        - if: $[[ inputs.environment ]] == 'production' && $[[ inputs.deployment_type ]] == 'canary'
          options: ['large', 'xlarge', 'xxlarge']
          default: 'large'
        - if: $[[ inputs.environment ]] == 'production'
          options: ['large', 'xlarge']
          default: 'xlarge'
        - if: $[[ inputs.environment ]] == 'staging'
          options: ['medium', 'large']
          default: 'medium'
        # Catch-all for development
        - options: ['small', 'medium']
          default: 'small'

    # Level 4: Complex dependencies but always resolves
    storage_type:
      rules:
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production' && $[[ inputs.resource_tier ]] == 'xxlarge'
          options: ['io2', 'io1', 'gp3']
          default: 'io2'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production'
          options: ['gp3', 'io1', 'gp2']
          default: 'gp3'
        - if: $[[ inputs.cloud_provider ]] == 'aws'
          options: ['gp2', 'gp3']
          default: 'gp2'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'production'
          options: ['pd-ssd', 'pd-extreme']
          default: 'pd-ssd'
        - if: $[[ inputs.cloud_provider ]] == 'gcp'
          options: ['pd-standard', 'pd-balanced']
          default: 'pd-standard'
        # Catch-all for Azure
        - options: ['Premium_LRS', 'StandardSSD_LRS']
          default: 'Premium_LRS'

    backup_frequency:
      rules:
        - if: $[[ inputs.environment ]] == 'production' && $[[ inputs.storage_type ]] == 'io2'
          options: ['hourly', '4hours', 'daily']
          default: 'hourly'
        - if: $[[ inputs.environment ]] == 'production'
          options: ['daily', 'weekly']
          default: 'daily'
        - if: $[[ inputs.environment ]] == 'staging'
          options: ['weekly', 'monthly']
          default: 'weekly'
        - options: ['monthly', 'never']
          default: 'never'

---
deploy:
  script: |
    echo "Cloud: $[[ inputs.cloud_provider ]]"
    echo "Env: $[[ inputs.environment ]]"
    echo "Strategy: $[[ inputs.deployment_type ]]"
    echo "Instance: $[[ inputs.instance_type ]]"
    echo "Resources: $[[ inputs.resource_tier ]]"
    echo "Storage: $[[ inputs.storage_type ]]"
    echo "Backups: $[[ inputs.backup_frequency ]]"

With an invalid config (testing for weird stuff):

spec:
  inputs:
    # Level 1: Base selections
    cloud_provider:
      options: ['aws', 'gcp', 'azure']
      default: 'aws'
      description: 'Cloud provider'

    environment:
      options: ['development', 'staging', 'production']
      default: 'development'
      description: 'Target environment'

    # Level 2: Depends on cloud + environment
    instance_type:
      description: 'VM instance type'
      rules:
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'development'
          options: ['t3.micro', 't3.small']
          default: 't3.micro'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'staging'
          options: ['t3.medium', 't3.large']
          default: 't3.medium'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production'
          options: ['t3.xlarge', 't3.2xlarge', 'm5.xlarge']
          default: 't3.xlarge'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'development'
          options: ['e2-micro', 'e2-small']
          default: 'e2-micro'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'production'
          options: ['e2-standard-4', 'e2-standard-8', 'n1-standard-4']
          default: 'e2-standard-4'
        - if: $[[ inputs.cloud_provider ]] == 'azure'
          options: ['Standard_B1s', 'Standard_B2s', 'Standard_D2s_v3']
          default: 'Standard_B1s'
        - options: []

    deployment_type:
      options: ['rolling', 'blue_green', 'canary']
      default: 'rolling'
      description: 'Deployment strategy'

    # Level 3: Depends on environment + deployment_type
    canary_percentage:
      description: 'Canary rollout percentage'
      rules:
        - if: $[[ inputs.deployment_type ]] == 'canary' && $[[ inputs.environment ]] == 'production'
          options: ['10', '25', '50', '75']
          default: '25'
        - if: $[[ inputs.deployment_type ]] == 'canary' && $[[ inputs.environment ]] == 'staging'
          options: ['50', '100']
          default: '50'
        - if: $[[ inputs.deployment_type ]] == 'canary'
          options: ['100']
          default: '100'
        - options: []

    # Level 4: Depends on cloud + environment + instance
    storage_tier:
      description: 'Storage performance tier'
      rules:
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production' && $[[ inputs.instance_type ]] == 't3.xlarge'
          options: ['gp3', 'io1', 'io2']
          default: 'gp3'
        - if: $[[ inputs.cloud_provider ]] == 'aws' && $[[ inputs.environment ]] == 'production'
          options: ['gp3', 'gp2']
          default: 'gp3'
        - if: $[[ inputs.cloud_provider ]] == 'aws'
          options: ['gp2', 'gp3']
          default: 'gp2'
        - if: $[[ inputs.cloud_provider ]] == 'gcp' && $[[ inputs.environment ]] == 'production'
          options: ['pd-ssd', 'pd-extreme']
          default: 'pd-ssd'
        - if: $[[ inputs.cloud_provider ]] == 'gcp'
          options: ['pd-standard', 'pd-ssd']
          default: 'pd-standard'
        - options: ['standard']

    # Edge case: Complex multi-condition
    monitoring_level:
      description: 'Monitoring verbosity'
      rules:
        - if: $[[ inputs.environment ]] == 'production' && $[[ inputs.deployment_type ]] == 'canary'
          options: ['verbose', 'standard', 'minimal']
          default: 'verbose'
        - if: $[[ inputs.environment ]] == 'production'
          options: ['standard', 'minimal']
          default: 'standard'
        - if: $[[ inputs.environment ]] == 'staging' && $[[ inputs.cloud_provider ]] == 'aws'
          options: ['standard', 'debug']
          default: 'standard'
        - options: ['minimal']

---
deploy:
  script: |
    echo "Deploying to $[[ inputs.cloud_provider ]]"
    echo "Environment: $[[ inputs.environment ]]"
    echo "Instance: $[[ inputs.instance_type ]]"
    echo "Strategy: $[[ inputs.deployment_type ]]"
    echo "Canary: $[[ inputs.canary_percentage ]]%"
    echo "Storage: $[[ inputs.storage_tier ]]"
    echo "Monitoring: $[[ inputs.monitoring_level ]]"

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