v0.3.2-pre.006

crates/ksp-store-postgres-lib/src/error.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-store-postgres-lib/src/error.rs
-// version: 1
+// version: 2
 
 /// Safe backend-local classification used by the Store facade for stable error mapping.
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
@@ -11,6 +11,12 @@ pub enum PostgresBackendErrorKind {
     ConnectFailed,
     /// A bounded pool wait, create or recycle operation reached its deadline.
     PoolTimeout,
+    /// PostgreSQL migration/bootstrap execution failed without exposing server text or SQL.
+    MigrationFailed,
+    /// Applied PostgreSQL migration history diverges from the embedded immutable KSP history.
+    MigrationMismatch,
+    /// The database schema history contains a migration newer than this runtime understands.
+    SchemaNewer,
     /// Explicit backend shutdown did not drain inside the supplied deadline.
     ShutdownTimeout,
     /// Verified TLS configuration or negotiation could not be established.