fix(agent): harden policy storage transactions

crates/agent-policy-tester/src/windows.rs

@@ -203,9 +203,8 @@ fn empty_policy() -> Value {
 fn policy_draft(id: &str, publisher: &str) -> Value {
     json!({
         "PolicyFormatVersion": "1.0.0",
-        "PolicyType": "PackageBrokerPolicy",
         "Metadata": { "Id": id, "Publisher": publisher },
-        "Enforcement": { "DefaultDecision": "Deny", "RulePrecedence": "PriorityThenDeny" },
+        "Enforcement": { "DefaultDecision": "Deny" },
         "Rules": []
     })
 }

crates/now-package-broker/Cargo.toml

@@ -31,12 +31,15 @@ hmac = "0.12"
 hyper = { version = "1", features = ["http1", "server"] }
 hyper-util = { version = "0.1", features = ["tokio", "server", "server-auto", "service"] }
 notify = { version = "7", default-features = false }
-now-policy = "0.4"
-now-policy-api = "0.5"
-now-policy-server-template = "0.5"
+http-body-util = "0.1"
+mime = "0.3"
+now-policy = "=0.5.0"
+now-policy-api = "=0.6.0"
+now-policy-server-template = "=0.6.0"
 parking_lot = "0.12"
 regex = "1"
 semver = "1"
+serde = "1"
 serde_json = "1"
 sha2 = "0.10"
 tokio = { version = "1.52", features = ["net", "io-util", "rt", "macros", "parking_lot", "fs", "sync", "time"] }