Merge branch 'worktree-agent-a184a6929a356b613'

# Conflicts:
#	src/engine.rs

src/dto.rs

@@ -54,6 +54,10 @@ pub struct LogsParams {
     pub start_ms: Option<i64>,
     pub end_ms: Option<i64>,
     pub limit: Option<usize>,
+    /// Raw FilterBar query string (ticket 007), e.g. `regex("error") and
+    /// sequence<5`. Parsed with `filter_parser::parse` and evaluated in the
+    /// engine; a malformed string surfaces as `EngineResponse::Error`.
+    pub filter: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
@@ -61,6 +65,9 @@ pub struct TimelineParams {
     pub start_ms: Option<i64>,
     pub end_ms: Option<i64>,
     pub bucket_ms: Option<i64>,
+    /// Same FilterBar query string as `LogsParams::filter`: only logs
+    /// matching it are counted into timeline buckets.
+    pub filter: Option<String>,
 }
 
 /// One entry from a metric's derived bucket timeseries: the label combination