chore(deps): update schemars to v1

Feature rename: url → url2. Use SchemaSettings::draft07() to keep
schema.json output on JSON Schema Draft 7 for IDE compatibility.
No Rust code changes beyond build.rs generator settings.

Author: james-crabnebula

Cargo.lock

@@ -19,7 +19,7 @@ thiserror = "2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 dunce = "1"
-schemars = { version = "0.8", features = ["url", "preserve_order", "derive"] }
+schemars = { version = "1", features = ["url2", "preserve_order", "derive"] }
 clap = { version = "4.5", features = ["derive"] }
 dirs = "6.0"
 semver = "1"