various cleanup tweaks/fixes

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/Cargo.toml

@@ -83,6 +83,7 @@ ruma.workspace = true
 sanitize-filename.workspace = true
 serde_json.workspace = true
 serde_regex.workspace = true
+serde_yaml.workspace = true
 serde.workspace = true
 thiserror.workspace = true
 tikv-jemallocator.optional = true

src/core/error/mod.rs

@@ -75,6 +75,8 @@ pub enum Error {
 	TracingFilter(#[from] tracing_subscriber::filter::ParseError),
 	#[error("Tracing reload error: {0}")]
 	TracingReload(#[from] tracing_subscriber::reload::Error),
+	#[error(transparent)]
+	Yaml(#[from] serde_yaml::Error),
 
 	// ruma/conduwuit
 	#[error("Arithmetic operation failed: {0}")]