An unopenable repository fails loudly — the standing row, the paused surface, the honest heal

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy

Kanban/LiveStore/BoardAnnouncer.swift

@@ -244,6 +244,21 @@ public enum BoardAnnouncer {
         public var breakageBefore: BoardLoadFailure?
         public var breakageAfter: BoardLoadFailure?
 
+        /// **The unreadable-repository condition before and after** (06-history-undo.md ▸ Rules,
+        /// ruled 2026-07-31: the standing breakage-class banner, "announced per
+        /// 10-accessibility.md"). Booleans rather than a payload for the row's own reason — the
+        /// sentence is fixed — and a pair rather than a single flag for the lock's: what is
+        /// announced is the *transition*, in either direction.
+        ///
+        /// No reload ever sets these. The condition is detected at board open and healed by the
+        /// paused engine's own re-read, neither of which is a reload — so its producer is
+        /// `BoardStore.noteRepositoryUnreadable(_:)`, exactly as the writability probe's lock is
+        /// `announceLockChange(from:)`'s. They live on this value anyway because the ladder is where
+        /// "one sentence, chosen by precedence" is decided, and a second announcer would be a second
+        /// voice.
+        public var repositoryUnreadableBefore = false
+        public var repositoryUnreadableAfter = false
+
         public init() {}
     }
 
@@ -304,6 +319,14 @@ public enum BoardAnnouncer {
         if let breakage = facts.breakageAfter, breakage != facts.breakageBefore {
             return AccessibilityPhrases.bannerLabel(tone: .error, headline: BannerCenter.headline(for: breakage))
         }
+        // Last of the raised conditions, matching the strip's own precedence: the two above it
+        // describe the board's files, this one describes the history over them.
+        if facts.repositoryUnreadableAfter, !facts.repositoryUnreadableBefore {
+            return AccessibilityPhrases.bannerLabel(
+                tone: .error,
+                headline: BannerCenter.repositoryUnreadableMessage
+            )
+        }
         return nil
     }
 
@@ -316,6 +339,9 @@ public enum BoardAnnouncer {
         if facts.breakageBefore != nil, facts.breakageAfter == nil {
             return AccessibilityPhrases.reloadBreakageCleared
         }
+        if facts.repositoryUnreadableBefore, !facts.repositoryUnreadableAfter {
+            return AccessibilityPhrases.repositoryUnreadableCleared
+        }
         return nil
     }
 }