feat: add main features

Agents for developpement added + frontend add + backend added. Git viewer created + agent and template creator + layout and project creator

crates/application/tests/error_codes.rs

@@ -0,0 +1,57 @@
+//! L1 tests pinning the stable [`AppError::code`] strings the IPC `ErrorDto`
+//! relies on, and the per-port `From` mappings.
+
+use application::AppError;
+use domain::ports::{FsError, GitError, ProcessError, PtyError, RemoteError, StoreError};
+
+#[test]
+fn codes_are_stable() {
+    assert_eq!(AppError::NotFound("x".into()).code(), "NOT_FOUND");
+    assert_eq!(AppError::Invalid("x".into()).code(), "INVALID");
+    assert_eq!(AppError::FileSystem("x".into()).code(), "FILESYSTEM");
+    assert_eq!(AppError::Store("x".into()).code(), "STORE");
+    assert_eq!(AppError::Process("x".into()).code(), "PROCESS");
+    assert_eq!(AppError::Git("x".into()).code(), "GIT");
+    assert_eq!(AppError::Remote("x".into()).code(), "REMOTE");
+    assert_eq!(AppError::Internal("x".into()).code(), "INTERNAL");
+}
+
+#[test]
+fn fs_not_found_maps_to_not_found_other_to_filesystem() {
+    assert_eq!(
+        AppError::from(FsError::NotFound("/tmp/x".into())).code(),
+        "NOT_FOUND"
+    );
+    assert_eq!(
+        AppError::from(FsError::PermissionDenied("/tmp/x".into())).code(),
+        "FILESYSTEM"
+    );
+    assert_eq!(AppError::from(FsError::Io("boom".into())).code(), "FILESYSTEM");
+}
+
+#[test]
+fn store_not_found_maps_to_not_found_other_to_store() {
+    assert_eq!(AppError::from(StoreError::NotFound).code(), "NOT_FOUND");
+    assert_eq!(
+        AppError::from(StoreError::Serialization("bad".into())).code(),
+        "STORE"
+    );
+}
+
+#[test]
+fn process_pty_runtime_map_to_process() {
+    assert_eq!(AppError::from(PtyError::NotFound).code(), "PROCESS");
+    assert_eq!(
+        AppError::from(ProcessError::Spawn("x".into())).code(),
+        "PROCESS"
+    );
+}
+
+#[test]
+fn git_and_remote_map_through() {
+    assert_eq!(AppError::from(GitError::NotFound).code(), "GIT");
+    assert_eq!(
+        AppError::from(RemoteError::Auth("nope".into())).code(),
+        "REMOTE"
+    );
+}