huskies: merge 581_story_freeze_command_to_hold_a_story_at_its_current_stage_without_advancing

server/src/io/story_metadata.rs

@@ -57,6 +57,9 @@ pub struct StoryMetadata {
     /// Story numbers this story depends on. Auto-assign will skip this story
     /// until all dependencies have reached `5_done` or `6_archived`.
     pub depends_on: Option<Vec<u32>>,
+    /// When `true`, the story is frozen: auto-assign skips it, the pipeline
+    /// does not advance it, and no mergemaster is spawned.
+    pub frozen: Option<bool>,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -89,6 +92,8 @@ struct FrontMatter {
     blocked: Option<bool>,
     /// Story numbers this story depends on.
     depends_on: Option<Vec<u32>>,
+    /// When `true`, the story is frozen.
+    frozen: Option<bool>,
 }
 
 pub fn parse_front_matter(contents: &str) -> Result<StoryMetadata, StoryMetaError> {
@@ -129,6 +134,7 @@ fn build_metadata(front: FrontMatter) -> StoryMetadata {
         retry_count: front.retry_count,
         blocked: front.blocked,
         depends_on: front.depends_on,
+        frozen: front.frozen,
     }
 }
 
@@ -439,6 +445,20 @@ pub fn increment_retry_count_in_content(contents: &str) -> (String, u32) {
     (updated, new_count)
 }
 
+/// Return `true` if the story has `frozen: true` in the content store.
+///
+/// Used by the pipeline advance code to suppress stage transitions for frozen stories.
+pub fn is_story_frozen_in_store(story_id: &str) -> bool {
+    let contents = match crate::db::read_content(story_id) {
+        Some(c) => c,
+        None => return false,
+    };
+    parse_front_matter(&contents)
+        .ok()
+        .and_then(|m| m.frozen)
+        .unwrap_or(false)
+}
+
 /// Write `blocked: true` to story content (pure function).
 pub fn write_blocked_in_content(contents: &str) -> String {
     set_front_matter_field(contents, "blocked", "true")