TracerPresentObservationConfiguration Injection failed

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Bug description
A clear and concise description of what the bug is about.

TracerPresentObservationConfiguration Injection failed

Environment
Please provide as many details as possible: Spring AI version, Java version, which vector store you use if any, etc

  <java.version>25</java.version>
 <spring-boot>4.0.3</version>
  <spring-ai.version>2.0.0-M2 / 2.0.0-M3</spring-ai.version>

Steps to reproduce
Steps to reproduce the issue.

spring:
  ai:
    chat:
      observations:
        include-error-logging: true
        log-prompt: true
        log-completion: true

Not effective

   ChatClientAutoConfiguration.TracerPresentObservationConfiguration:
      Did not match:
         - @ConditionalOnBean (types: io.micrometer.tracing.Tracer; SearchStrategy: all) did not find any beans of type io.micrometer.tracing.Tracer (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class 'io.micrometer.tracing.Tracer' (OnClassCondition)

   ChatObservationAutoConfiguration.TracerPresentObservationConfiguration:
      Did not match:
         - @ConditionalOnBean (types: io.micrometer.tracing.Tracer; SearchStrategy: all) did not find any beans of type io.micrometer.tracing.Tracer (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class 'io.micrometer.tracing.Tracer' (OnClassCondition)

   ImageObservationAutoConfiguration.TracerPresentObservationConfiguration:
      Did not match:
         - @ConditionalOnBean (types: io.micrometer.tracing.Tracer; SearchStrategy: all) did not find any beans of type io.micrometer.tracing.Tracer (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class 'io.micrometer.tracing.Tracer' (OnClassCondition)

   VectorStoreObservationAutoConfiguration.TracerPresentObservationConfiguration:
      Did not match:
         - @ConditionalOnBean (types: io.micrometer.tracing.Tracer; SearchStrategy: all) did not find any beans of type io.micrometer.tracing.Tracer (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class 'io.micrometer.tracing.Tracer' (OnClassCondition)

The Tracer bean exists in my project.

When injecting TracerPresentObservationConfiguration, it needs to be added after BraveAutoConfiguration.

If you have the same problem, you can leave it to me. If not, please contact me and I'll check it again carefully. However, my program is very simple; it doesn't include any custom classes or configurations.

Start with ChatClientAutoConfiguration, ChatObservationAutoConfiguration, ImageObservationAutoConfiguration, and VectorStoreObservationAutoConfiguration, focusing on their TracerPresentObservationConfiguration conditions. Compare their ordering with BraveAutoConfiguration and reproduce the issue using the supplied Spring YAML settings. Done means the existing Tracer bean is detected and observation logging becomes effective.