refactor: flag internally that dev not based on main will require used intervention

Preparation for when we will be sending user notifications

crates/git/src/validation/positions.rs

@@ -40,7 +40,7 @@ pub fn validate_positions(
     // Validations:
     // Dev must be on main branch, else the USER must rebase it
     if is_not_based_on(&commit_histories.dev, &main) {
-        return Err(Error::NonRetryable(format!(
+        return Err(Error::UserIntervention(format!(
             "Branch '{}' not based on '{}'",
             dev_branch, main_branch
         )));
@@ -119,6 +119,9 @@ pub enum Error {
 
     #[error("{0} - not retrying")]
     NonRetryable(String),
+
+    #[error("{0} - user intervention required")]
+    UserIntervention(String),
 }
 impl From<git::fetch::Error> for Error {
     fn from(value: git::fetch::Error) -> Self {

crates/git/src/validation/tests.rs

@@ -249,7 +249,7 @@ mod positions {
             //then
             assert!(matches!(
                 err,
-                git::validation::positions::Error::NonRetryable(_)
+                git::validation::positions::Error::UserIntervention(_)
             ));
         }
 

crates/repo-actor/src/handlers/validate_repo.rs

@@ -97,7 +97,8 @@ impl Handler<actor::messages::ValidateRepo> for actor::RepoActor {
                 .into_actor(self)
                 .wait(ctx);
             }
-            Err(git::validation::positions::Error::NonRetryable(message)) => {
+            Err(git::validation::positions::Error::NonRetryable(message))
+            | Err(git::validation::positions::Error::UserIntervention(message)) => {
                 actor::logger(&self.log, message);
             }
         }