First slice: ledger-store (journal+blobs+sqlite) and ledger-mcp (18 tools, receipt policy)

crates/ledger-store/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "ledger-store"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "Durable persistence for wanderbooks: a hash-chained JSONL journal as the source of truth, content-addressed blob store, and a disposable SQLite projection."
+
+[dependencies]
+ledger-core = { path = "../ledger-core" }
+rusqlite = { version = "0.32", features = ["bundled"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+chrono = "0.4"
+thiserror = "2"
+sha2 = "0.10"
+hex = "0.4"
+
+[dev-dependencies]
+tempfile = "3"
+rust_decimal = "1"
+
+[lints]
+workspace = true