feat(focus-area): use enriched descriptions in cluster output

cluster_tasks now attaches enriched_description to each task dict.
focus-area reads enriched_description (falling back to raw content) when
building the area summary, so the orchestrator sees the expanded 3-sentence
descriptions instead of terse raw titles.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ml/agents/clustering.py

@@ -268,6 +268,11 @@ def cluster_tasks(
     # Step 1: LLM-enrich titles → richer semantic signal before embedding.
     descriptions, new_enrichments = _enrich_batch(raw_titles, persistent_cache=enrichment_cache)
 
+    # Attach enriched description to each task dict so consumers (e.g. focus-area)
+    # can show the expanded text instead of the terse raw title.
+    for task, desc in zip(task_objs, descriptions):
+        task["enriched_description"] = desc
+
     # Step 2: Prefix with nomic-embed-text task prefix, then batch-embed.
     prefixed = [f"clustering: {d}" for d in descriptions]
     vecs = _embed_batch(prefixed)

ml/agents/focus_area.py

@@ -45,11 +45,16 @@ class FocusAreaAgent(BaseAgent):
 
         lines = [f"The user's tasks are grouped into {len(clusters)} area(s):"]
         for i, cluster in enumerate(clusters, 1):
-            titles = [t.get("content", "").strip() for t in cluster.tasks if t.get("content")]
-            titles_str = "; ".join(f'"{t}"' for t in titles[:8])
-            if len(titles) > 8:
-                titles_str += f" (and {len(titles) - 8} more)"
-            lines.append(f"{i}. {cluster.label} — {cluster.task_count} task(s): {titles_str}")
+            descs = [
+                t.get("enriched_description") or t.get("content", "")
+                for t in cluster.tasks
+                if t.get("content")
+            ]
+            descs = [d.strip() for d in descs if d.strip()]
+            descs_str = "; ".join(f'"{d}"' for d in descs[:8])
+            if len(descs) > 8:
+                descs_str += f" (and {len(descs) - 8} more)"
+            lines.append(f"{i}. {cluster.label} — {cluster.task_count} task(s): {descs_str}")
 
         lines.append("(Task titles may be in any language — always write the tip in English.)")