Support for "depends_on ... service_healthy" in Compose

[IReclaimer]

Current Behaviour:

When trying to convert a Compose file that uses:

depends_on:
  postgresql:
    condition: service_healthy

Podlet fails with the following error:

Error:
0: error converting compose file
1: error converting compose file into Quadlet files
2: error adding dependency on postgresql to service server
3: dependency condition service_healthy is not directly supported

Podlet suggests using Notify=healthy in the [Container] section manually, but this requires a user to manually modify the generated quadlets, and the idea of using Podlet is so that one doesn't have to do this.

Feature Request:

• If a Compose service defines a healthcheck, the resulting quadlet should include Notify=healthy.
• If a Compose service has a depends_on entry with condition: service_healthy, the resulting quadlet should include the appropriate Requires= and After= keys referencing the dependency container.

This simplifies the conversion logic and preserves Compose semantics in a way that maps naturally to systemd/Podman quadlets without any user intervention.