Fix: replace all stale app.services.retriever imports with vector_store

app/services/context_builder.py

@@ -9,7 +9,7 @@ RULE: Include book title for each chunk to help model cross-book navigation.
 import structlog
 
 from app.config import get_settings
-from app.services.retriever import RetrievedChunk
+from app.services.vector_store import RetrievedChunk
 from app.utils.token_counter import count_tokens
 
 logger = structlog.get_logger(__name__)

app/services/formatter.py

@@ -9,7 +9,7 @@ RULE: Links formatted as markdown-ready text for the widget to render.
 import re
 import structlog
 
-from app.services.retriever import RetrievedChunk
+from app.services.vector_store import RetrievedChunk
 
 logger = structlog.get_logger(__name__)
 

app/services/guardrails.py

@@ -12,7 +12,7 @@ import re
 import structlog
 
 from app.config import get_settings
-from app.services.retriever import RetrievedChunk
+from app.services.vector_store import RetrievedChunk
 
 logger = structlog.get_logger(__name__)
 cfg = get_settings()

app/services/reranker.py

@@ -9,7 +9,7 @@ RULE: Keep top N chunks above minimum score threshold.
 import structlog
 
 from app.config import get_settings
-from app.services.retriever import RetrievedChunk
+from app.services.vector_store import RetrievedChunk
 
 logger = structlog.get_logger(__name__)
 cfg = get_settings()

app/tasks/ingestion_task.py

@@ -85,10 +85,10 @@ async def _run_pipeline(
     Returns:
         Dict with pipeline results.
     """
-    from app.core.ingestion.parser import parse_document
+    from app.services.parser import parse_document
     from app.services.chunker import chunk_document
-    from app.core.ingestion.embedder import embed_and_store
-    from app.core.ingestion.summarizer import summarize_book
+    from app.services.embeddings import embed_and_store
+    from app.services.summarizer import summarize_book
     from app.dependencies import _get_session_factory
 
     async with _get_session_factory()() as db: