refactor(memory): consolidate memory search services and update model client handling

- Consolidate memory search services by removing separate content_search.py and perceptual_search.py
- Update model client handling in base_pipeline.py to use ModelApiKeyService for LLM client initialization
- Add new prompt files and modify existing services to support consolidated search architecture
- Refactor memory read pipeline and related services to use updated model client approach

api/app/core/memory/read_services/content_search.py

@@ -12,8 +12,8 @@ from app.repositories.neo4j.neo4j_connector import Neo4jConnector
 
 logger = logging.getLogger(__name__)
 
-DEFAULT_ALPHA = 0.7
-DEFAULT_FULLTEXT_SCORE_THRESHOLD = 1
+DEFAULT_ALPHA = 0.6
+DEFAULT_FULLTEXT_SCORE_THRESHOLD = 1.5
 DEFAULT_COSINE_SCORE_THRESHOLD = 0.5
 DEFAULT_CONTENT_SCORE_THRESHOLD = 0.5
 
@@ -112,7 +112,7 @@ class Neo4jSearchService:
             kw = float(combined[item_id].get("kw_score", 0) or 0)
             emb = float(combined[item_id].get("embedding_score", 0) or 0)
             base = self.alpha * emb + (1 - self.alpha) * kw
-            combined[item_id]["content_score"] = base + min(1 - base, kw * emb)
+            combined[item_id]["content_score"] = base + min(1 - base, 0.1 * kw * emb)
         results = sorted(combined.values(), key=lambda x: x["content_score"], reverse=True)
         # results = [
         #     res for res in results

api/app/core/memory/read_services/result_builder.py

@@ -61,14 +61,18 @@ class EntityBuilder(BaseBuilder):
     def data(self) -> dict:
         return {
             "id": self.record.get("id"),
-            "content": self.record.get("name"),
+            "name": self.record.get("name"),
+            "description": self.record.get("description"),
             "kw_score": self.record.get("kw_score", 0.0),
             "emb_score": self.record.get("embedding_score", 0.0)
         }
 
     @property
     def content(self) -> str:
-        return self.record.get("name")
+        return (f"<entity>"
+                f"<name>{self.record.get("name")}<name>"
+                f"<description>{self.record.get("description")}</description>"
+                f"</entity>")
 
 
 class SummaryBuilder(BaseBuilder):