Add Swagger Copy for AI

[eviltester]

Summary

• Add shared Swagger UI "Copy for AI" JavaScript and CSS assets.
• Wire the copy toolbar and per-operation buttons into Thingifier-generated Swagger UI and CRUD UI Swagger UI.
• Generate Markdown client-side from OpenAPI using window.location.origin plus any relative server path prefix, such as /api.
• Add static/unit coverage and CRUD UI Playwright coverage for the copy buttons and generated clipboard text.

Closes #71

Verification

• node --check thingifier\src\main\resources\public\js\swagger-copy-for-ai.js
• mvn -pl thingifier -Dtest=SwaggerUiPageTest,SwaggerCopyForAiAssetTest test
• mvn -pl thingifier-crud-ui -am -Dtest=CrudUiControllerTest -DfailIfNoTests=false -Dsurefire.failIfNoSpecifiedTests=false test
• mvn -pl thingifier-crud-ui -am -Dit.test=SwaggerCopyForAiUiIT verify
• mvn -pl thingifier,thingifier-crud-ui -am test
• mvn -pl thingifier-crud-ui -am verify
• mvn -pl thingifier -DskipTests checkstyle:check@project-fqn-check
• mvn spotless:check

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Include path-level parameters in operation copies

For operations whose parameters are defined at the OpenAPI path-item level, this only passes operation.parameters, so copied Markdown omits required URL params and can even say “No parameters documented” for endpoints like /.../{id}. The Thingifier Swaggerizer emits URL parameters onto the path item with path.addParametersItem(...), so please carry the path item's parameters through the operation index and merge them before calling appendParameters.

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