CalDAV calendar-query and free-busy-query REPORT

crates/dav-proto/Cargo.toml

@@ -10,6 +10,7 @@ calcard = { path = "/Users/me/code/calcard", features = ["rkyv"] }
 mail-parser = "0.10.2"
 hyper = "1.6.0"
 rkyv = { version = "0.8.10", features = ["little_endian"] }
+chrono = { version = "0.4.40", features = ["serde"], optional = true }
 
 [dev-dependencies]
 calcard = { path = "/Users/me/code/calcard", features = ["serde", "rkyv"] }
@@ -18,5 +19,5 @@ serde_json = "1.0.138"
 chrono = { version = "0.4.40", features = ["serde"] }
 
 [features]
-test_mode = []
+test_mode = ["chrono"]
 enterprise = []