chore: refactor backend around domain types (#26)

Reviewed-on: #26

crates/signed_core/src/lib.rs

@@ -6,15 +6,10 @@ pub mod model;
 pub mod state;
 pub mod status;
 
-pub use addr::{RepoAddr, identifier_from_name, repo_addr};
+pub use addr::RepoAddr;
 pub use deletions::Deletions;
-pub use filters::{
-    NOTIFICATION_KINDS, authored_activity, is_git_activity, notification_comments, notifications,
-};
-pub use inbox::{InboxItem, InboxReadState, group, notification_root};
-pub use model::{
-    Announcement, activity_subject, branch_name_of, clone_urls_of, current_commit_of,
-    fork_candidates, latest_update, merge_base_of, pull_request_patch, pull_request_patches,
-};
-pub use state::{build_state, parse_state};
-pub use status::{RepoStatus, references_root, resolve_status};
+pub use filters::Filters;
+pub use inbox::{InboxItem, InboxReadState, ThreadResolver};
+pub use model::{Announcement, GitEvent, PullRequest};
+pub use state::RepoState;
+pub use status::RepoStatus;