Closes gh-25769

Closes gh-25768

Closes gh-25741

Closes gh-25767

Closes gh-25740

Closes gh-25765

Previously, a root URI configured via RestTemplateBuilder's rootUri
method and RootUriTemplateHandler was not taken into account when
generated the URI tag for RestTemplate request metrics.

This commit updates MetricsClientHttpRequestInterceptor to be aware
of RootUriTemplateHandler and capture the URI template once the
root URI has been applied.

Fixes gh-25744

In order to provide a single constant for graceful shutdown's smart
lifecycle, this commit replaces the package-private reactive and
servlet-specific implementations with a single public implementation
that can be used by both web stacks. This new public implementation
provides a constant for its smart lifecycle phase.

Closes gh-24255

Closes gh-25763

See gh-25762

Closes gh-25762

Closes gh-25761

Closes gh-25760

Closes gh-25487
Closes gh-25756

Closes gh-25757

Closes gh-25755

Closes gh-25754

* pr/25129:
  Polish "Take JPA database action into account when setting ddlAuto"
  Take JPA database action into account when setting ddlAuto

Closes gh-25129

See gh-25129

See gh-25129

Closes gh-21045

Closes gh-25701

Closes gh-25700

Closes gh-24225

Closes gh-25747

Closes gh-25553

Closes gh-25564

Update `PrometheusScrapeEndpoint` so that it can produce both classic
Prometheus text output as well as Openmetrics output.

See gh-25564

Refine the new `Producible` support so that it can also be used with
`@ReadOperation`, `@WriteOperation` and `@DeleteOperation` annotations.

This update allows the same enum to be used both as an argument and as
an indicator of the media-types that an operation may produce.

Closes gh-25738

Update the actuator @Enpoint` infrastructure code so that operations
may inject enums that indicate the type of output to produce. A new
`Producible` interface can be implemented by any enum that indicates
the mime-type that an enum value produces.

The new `OperationArgumentResolver` provides a general strategy for
resolving operation arguments with `ProducibleOperationArgumentResolver`
providing support for `Producible` enums. Existing injection support has
been refactored to use the new resolver.

See gh-25738

Polish the prefix support introduced in commit a8592f36 and fix a
package tangle between `boot.context.properties.source` and `boot.env`.

The `Prefix` interface has now been moved into a new default method on
`OriginLookup`.

See gh-3450

Closes gh-25580

Closes gh-25579