Expose Audit Logs in metalctl audit ls

[vknabel]

Meilisearch does only provide a searchable web frontend when running in development mode. We want to avoid this and a little bit more convenience.

The approach is to add a subcommand to metalctl to show audit logs: metalctl audit ls.

[Gerrit91]

Flags that should be available for the user to filter down search results:

• --request-id 3c56f318-95aa-49c2-afba-53e0336cbb3a (string starts-with)
• --path /v1/image (free search in path field)
• --user user@metal-stack.io (exact match?)
• --tenant metal-stack.io (exact match?)
• --from "2023-02-01 15:23:34" --to "2023-02-01 16:45:57" (defaults to time.Now() - 1h)
• --body "something" (free text searches on body and response fields)
• ...?

Changes we have to make for the fields in meilisearch:

• Factor out field names into constants / form a common search query struct for the interface?
  • Maybe consider interface refactoring?
• Add unix timestamp to have time searchable queries
• Disable typo tolerance
• Remove duplicate request body from response entry