Implement the password-store tree sidebar

crates/storage/src/read.rs

@@ -21,11 +21,43 @@ pub enum TreeNodeKind {
     Entry,
 }
 
+/// Presentation-safe state calculated by storage services for a tree object.
+/// Frontends render these flags and never infer them from names or paths.
+#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+pub struct TreeNodeIndicators {
+    locked: bool,
+    changed: bool,
+    conflict: bool,
+}
+
+impl TreeNodeIndicators {
+    pub const fn new(locked: bool, changed: bool, conflict: bool) -> Self {
+        Self {
+            locked,
+            changed,
+            conflict,
+        }
+    }
+
+    pub const fn is_locked(self) -> bool {
+        self.locked
+    }
+
+    pub const fn is_changed(self) -> bool {
+        self.changed
+    }
+
+    pub const fn has_conflict(self) -> bool {
+        self.conflict
+    }
+}
+
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct TreeNode {
     name: String,
     path: String,
     kind: TreeNodeKind,
+    indicators: TreeNodeIndicators,
     children: Vec<TreeNode>,
 }
 
@@ -42,6 +74,10 @@ impl TreeNode {
         self.kind
     }
 
+    pub fn indicators(&self) -> TreeNodeIndicators {
+        self.indicators
+    }
+
     pub fn children(&self) -> &[TreeNode] {
         &self.children
     }
@@ -592,6 +628,7 @@ fn finalize_children(node: MutableNode, parent: &Path) -> Result<Vec<TreeNode>,
                 name,
                 path: path_text(&path)?,
                 kind,
+                indicators: TreeNodeIndicators::default(),
                 children,
             })
         })