Trusty: provenance library workspace (initial import)

crates/adapters/trusty-postgres/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+name = "trusty-postgres"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+description = "PostgreSQL adapter for Trusty. Three-table schema mirroring trusty-sqlite with optional TimescaleDB feature, OID-anchored producer identity, and CHECKPOINT verification primitive."
+
+[dependencies]
+trusty-core = { workspace = true }
+trusty-store = { workspace = true }
+postgres = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+chrono = { workspace = true }
+thiserror = { workspace = true }
+tracing = { workspace = true }
+hex = { workspace = true }
+
+[dev-dependencies]
+trusty-store = { workspace = true, features = ["testing"] }
+
+[features]
+default = []
+timescale = []