memoryd: index ToolSummary as kind summary

Co-Authored-By: ornith-1.5-35b-a3b <agent@wntrmute.dev>

crates/memoryd/src/index.rs

@@ -1,6 +1,7 @@
 //! The index: SQLite FTS5 over the session logs and `notes.md` (M5a spec, section 6). Disposable:
 //! it is rebuilt from those files. What is indexed: the owner's messages, the assistant's
-//! replies, and each tool call by name and arguments; never a tool's result.
+//! replies, and each tool call by name and arguments; the summary of an opted-in tool result,
+//! but never the tool's result itself.
 
 use std::os::unix::fs::PermissionsExt;
 use std::path::{Path, PathBuf};
@@ -257,6 +258,23 @@ impl Index {
                     }
                 }
             }
+            LogRecord::ToolSummary {
+                time,
+                content,
+                class,
+                untrusted,
+                ..
+            } if !content.trim().is_empty() && *class <= self.max_class => {
+                let src = Source {
+                    kind: "summary".to_string(),
+                    time: time.to_rfc3339(),
+                    role: "summary".to_string(),
+                    class: *class,
+                    untrusted: *untrusted,
+                    ..base.clone()
+                };
+                self.add(content, &src)?;
+            }
             _ => {}
         }
         Ok(())