### Is your feature request related to a problem? Please describe I need to fetch contents from Castopod to other clients, e.g. custom mobile app. The REST API added in #210 is nice, but it is relatively simple. Currently displaying e.g. list of the most recent episodes (across all podcasts) requires iterating over multiple endpoints. ### Describe the solution you'd like There should be an endpoint that allows to query episodes, similarly to how we can now query podcasts. ### Additional context The added endpoints would be - `GET /api/rest/v1/episodes` - `GET /api/rest/v1/episode/{id}` The first endpoint will accept additional optional query parameters, allowing to narrow the search: - `order` - string (newest|search) - search method - if set to `newest` sort from the newest to the oldest, - if set to `search` and there's a search parameter given - sort by search match rating starting from the best match, - if not set, act as in `newest`. - `count` - integer > 0 - amount of records to return - if not set, no limit - `start` - integer >= 0, index of the first record returned - if not set, 0 - `podcastIds` - comma-separated integers - identifiers of podcasts that should be queried - if not set, query all podcasts - `search` - string - search phrase - if not set, do not limit query by search In case of search it should do a full text search using any mechanism directly available in MySQL/MariaDB on fields - podcast.title - podcast.handle - podcast.description_markdown - episode.title - episode.slug - episode.description_markdown - episode.location_name ### Additional context As in case of #210 I'm ready to sponsor such development. Please let me know if the design of the API is OK and whether we can proceed.