Add AI Guard system tests for java, python and nodejs

[manuel-alvarez-alvarez]

Motivation

Add AI Guard SDK integration test suite.

Changes

• Implement AI Guard evaluation endpoints in Java Spring Boot, Node.js Express and Python Flask
• Add test coverage for AI Guard SDK functionality with both blocking and non-blocking scenarios
• New AI Guard scenario configured with VCR proxy for mocked API responses
• Update all manifest files to specify AI Guard feature support all the tracers

Workflow

1. ⚠️ Create your PR as draft ⚠️
2. Work on you PR until the CI passes
3. Mark it as ready for review
   • Test logic is modified? -> Get a review from RFC owner.
   • Framework is modified, or non obvious usage of it -> get a review from R&P team

🚀 Once your PR is reviewed and the CI green, you can merge it!

🛟 #apm-shared-testing 🛟

Reviewer checklist

• If PR title starts with [<language>], double-check that only <language> is impacted by the change
• No system-tests internal is modified. Otherwise, I have the approval from R&P team
• A docker base image is modified?
  • the relevant build-XXX-image label is present
• A scenario is added (or removed)?
  • Get a review from R&P team

[github-actions]

CODEOWNERS have been resolved as:

tests/ai_guard/__init__.py                                              @DataDog/system-tests-core
tests/ai_guard/test_ai_guard_sdk.py                                     @DataDog/system-tests-core
utils/_context/ports.py                                                 @DataDog/system-tests-core
utils/build/docker/java/spring-boot/src/main/java/com/datadoghq/system_tests/springboot/ai_guard/AIGuardController.java  @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/vcr/cassettes/aiguard/aiguard_evaluate_post_0e5c9613.json  @DataDog/system-tests-core
utils/build/docker/vcr/cassettes/aiguard/aiguard_evaluate_post_3fc277b9.json  @DataDog/system-tests-core
utils/build/docker/vcr/cassettes/aiguard/aiguard_evaluate_post_8919fde6.json  @DataDog/system-tests-core
utils/build/docker/vcr/cassettes/aiguard/aiguard_evaluate_post_f2b74780.json  @DataDog/system-tests-core
.github/workflows/run-end-to-end.yml                                    @DataDog/system-tests-core
docs/weblog/README.md                                                   @DataDog/system-tests-core
manifests/cpp.yml                                                       @DataDog/dd-trace-cpp
manifests/cpp_httpd.yml                                                 @DataDog/system-tests-core
manifests/cpp_nginx.yml                                                 @DataDog/system-tests-core
manifests/dotnet.yml                                                    @DataDog/apm-dotnet @DataDog/asm-dotnet
manifests/golang.yml                                                    @DataDog/dd-trace-go-guild
manifests/java.yml                                                      @DataDog/asm-java @DataDog/apm-java
manifests/nodejs.yml                                                    @DataDog/dd-trace-js
manifests/php.yml                                                       @DataDog/apm-php @DataDog/asm-php
manifests/python.yml                                                    @DataDog/apm-python @DataDog/asm-python
manifests/ruby.yml                                                      @DataDog/ruby-guild @DataDog/asm-ruby
utils/_context/_scenarios/__init__.py                                   @DataDog/system-tests-core
utils/_context/_scenarios/endtoend.py                                   @DataDog/system-tests-core
utils/_context/containers.py                                            @DataDog/system-tests-core
utils/_features.py                                                      @DataDog/system-tests-core
utils/build/docker/nodejs/express/app.js                                @DataDog/dd-trace-js @DataDog/system-tests-core
utils/build/docker/python/flask/app.py                                  @DataDog/apm-python @DataDog/asm-python @DataDog/system-tests-core

[cbeauchesne]

Two small RC

dzedezd

[simon-id]

LGTM for the nodejs changes

[cbeauchesne]

Two small RC