client: use 'Podman' instead of 'Docker' in messages to user

[davidpanderson]

Summary by cubic

Default to “Podman” in user-facing messages and help links, but show “Docker” when Docker is the detected runtime. Also fixes an uninitialized field in project list entries. Improves logs, host info, cleanup output, and WSL notices.

• Refactors

  • Messages use the detected runtime name (Docker/Podman) in host info and compose lines (e.g., “%s version %s”).
  • Install/help links now point to Podman; show a Podman install notice when missing; Windows WSL notices mention “Docker or Podman”.
  • Cleanup logs include the runtime (e.g., “Removed unused %s container/image”); CPU scheduler alerts refer to Podman when appropriate.
  • Inlined docker_type_str() in hostinfo.h with proper capitalization; removed old implementation and fixed a Windows build issue.
  • Initialized PROJECT_LIST_ENTRY::is_account_manager to false to avoid uninitialized state.

• New Features

  • Added dont_use_podman in cc_config.xml (alias of dont_use_docker); logs reflect “don’t use Podman/Docker” and skip Podman apps when disabled.

^{Written for commit 3ea21a7. Summary will update on new commits.}

[cubic-dev-ai]

All reported issues were addressed

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