Add each department ministry as a feed

[melkuo]

Is your feature request related to a problem? Please describe.
Each ministry seems to have its own news release feed, e.g. Defence, Immigration

We'd like to digest these feeds. For relevant entries, rather than having the AI try to match it to any promise, we should only match it to promises of that ministry. That should be more high signal.

Describe the solution you'd like

• See if there exists a high-signal feed for each ministry
• Ingest that
• Only attempt to match to relevant ministry