Add support for configuring app health_check via bundle config

[arushiagarwal-db]

Changes

Add health_check to the inline app config block for apps in bundle config:

resources:
  apps:
    myapp:
      source_code_path: ./app
      config:
        command: ["flask", "--app", "app", "run"]
        health_check:
          path: /health
          timeout_seconds: 120

The value is passed to the Apps Deploy API's new health_check field (path, timeout). The fields match health_check in app.yaml (path, timeout_seconds), so databricks apps import also inlines health_check from an existing app.yaml. The direct engine reads health_check back from the active deployment for drift detection, the same way it does for command and env.

Why

This follows #4271 (inline command/env). It lets users set the deploy-time health check per target in bundle config, without keeping it in a separate app.yaml.

Tests

• Extended the acceptance/bundle/resources/apps/inline_config acceptance test with a health_check and a /health route in the test app.
• Extended TestBuildAppDeploymentWithValueFrom and TestInlineAppConfigFileFieldPriority unit tests.
• Regenerated refschema, JSON schema, and required-fields validation.

This pull request and its description were written by Isaac.

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Inputs:

• PR number: 7081
• Commit SHA: b98c6f23fc9d6828d13ae20eb62b8a3ded5e348c

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