first commit

migrations/003_backup_layout.sql

@@ -0,0 +1,17 @@
+-- The plan lives in the same private SQLite database as backup metadata. Files
+-- are copied and verified first; all active paths and applied flags commit
+-- together. Original files remain available for an explicit rollback.
+CREATE TABLE backup_layout_journal (
+    backup_id INTEGER PRIMARY KEY REFERENCES backups(id) ON DELETE CASCADE,
+    router_id INTEGER NOT NULL,
+    backup_type TEXT NOT NULL,
+    original_path TEXT NOT NULL,
+    source_path TEXT NOT NULL,
+    destination_path TEXT NOT NULL,
+    sha256 TEXT NOT NULL,
+    copied INTEGER NOT NULL DEFAULT 0 CHECK (copied IN (0,1)),
+    applied INTEGER NOT NULL DEFAULT 0 CHECK (applied IN (0,1)),
+    snapshot_path TEXT NOT NULL,
+    created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+INSERT INTO rust_schema_migrations (version) VALUES (3);