huskies: merge 730_story_use_numeric_only_story_ids_across_mcp_worktrees_git_branches_and_log_paths

server/src/service/common/item_id.rs

@@ -1,12 +1,14 @@
 //! Pure helpers for pipeline item ID parsing.
 //!
-//! Pipeline item IDs share the format `{number}_{type}_{slug}`, e.g.
-//! `"42_story_foo"`, `"7_bug_bar"`, `"100_refactor_baz"`. The functions here
-//! extract or validate the leading numeric segment without performing any I/O.
+//! Pipeline item IDs are numeric strings, e.g. `"42"`, `"730"`. Legacy items
+//! may use the old `{number}_{type}_{slug}` format (e.g. `"42_story_foo"`).
+//! The functions here extract or validate the leading numeric segment without
+//! performing any I/O.
 
 /// Extract the numeric prefix from a pipeline item ID.
 ///
-/// Returns the leading digit sequence from IDs like `"42_story_foo"` → `"42"`.
+/// Works for both numeric-only IDs (`"42"` → `"42"`) and legacy slug-format
+/// IDs (`"42_story_foo"` → `"42"`).
 /// Returns `None` if the ID has no leading digit sequence.
 pub fn extract_item_number(item_id: &str) -> Option<&str> {
     item_id
@@ -16,9 +18,9 @@ pub fn extract_item_number(item_id: &str) -> Option<&str> {
 }
 
 #[allow(dead_code)]
-/// Return `true` if `item_id` has a valid `{digits}_` prefix format.
+/// Return `true` if `item_id` starts with a numeric prefix.
 ///
-/// Valid: `"42_story_foo"`, `"1_bug_bar"`.
+/// Valid: `"42"`, `"42_story_foo"`, `"1_bug_bar"`.
 /// Invalid: `"story_without_number"`, `""`, `"abc_story"`.
 pub fn has_valid_id_prefix(item_id: &str) -> bool {
     extract_item_number(item_id).is_some()
@@ -42,6 +44,20 @@ mod tests {
         assert_eq!(extract_item_number("1_spike_research"), Some("1"));
     }
 
+    #[test]
+    fn extract_item_number_works_for_numeric_only_ids() {
+        // Numeric-only IDs (the new canonical format).
+        assert_eq!(extract_item_number("42"), Some("42"));
+        assert_eq!(extract_item_number("730"), Some("730"));
+        assert_eq!(extract_item_number("1"), Some("1"));
+    }
+
+    #[test]
+    fn has_valid_id_prefix_returns_true_for_numeric_only() {
+        assert!(has_valid_id_prefix("42"));
+        assert!(has_valid_id_prefix("730"));
+    }
+
     #[test]
     fn extract_item_number_returns_none_for_no_numeric_prefix() {
         assert_eq!(extract_item_number("story_without_number"), None);