feat: harmonize MCP tool + userinfo page to documents/chunks model

Extend the documents-vs-chunks split to the remaining status surfaces so all
three report consistently (Deck #195):

- nc_get_vector_sync_status MCP tool + VectorSyncStatusResponse: add
  indexed_documents (distinct) and indexed_chunks; keep indexed_count as a
  deprecated alias of indexed_chunks. Reuses count_indexed.
- userinfo HTML page (/app/vector-sync/status): show Indexed Documents AND
  Indexed Chunks rows; switch its count to count_indexed (which also excludes
  placeholder points — the old raw count included them).
- /api/v1/vector-sync/status: restore indexed_count as a deprecated alias of
  indexed_chunks so existing consumers (integration tests, pre-#115 UI) keep
  working; the change is now purely additive for indexed_count.

Tests: VectorSyncStatusResponse documents/chunks/alias + zeroed defaults.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

nextcloud_mcp_server/api/management.py

@@ -327,9 +327,11 @@ async def get_vector_sync_status(request: Request) -> JSONResponse:
             "status": status,
             # indexed_documents is now the distinct-document count (was the chunk
             # count before — the two differ by the per-document chunk fan-out).
-            # indexed_chunks exposes the raw point count separately.
+            # indexed_chunks exposes the raw point count separately; indexed_count
+            # is kept as a deprecated alias of indexed_chunks for back-compat.
             "indexed_documents": indexed_documents,
             "indexed_chunks": indexed_chunks,
+            "indexed_count": indexed_chunks,
             "pending_documents": pending.pending,
             "ingest_queue": settings.ingest_queue,
         }

nextcloud_mcp_server/auth/userinfo_routes.py

@@ -104,7 +104,8 @@ async def _get_processing_status(request: Request) -> dict[str, Any] | None:
         Dictionary with processing status, or None if vector sync is disabled
         or components are unavailable:
         {
-            "indexed_count": int,  # Number of documents in Qdrant
+            "indexed_documents": int,  # Distinct documents in Qdrant
+            "indexed_chunks": int,  # Total chunks/points in Qdrant
             "pending_count": int,  # Number of documents in queue
             "status": str,  # "syncing" or "idle"
         }
@@ -130,30 +131,33 @@ async def _get_processing_status(request: Request) -> dict[str, Any] | None:
             ingest_queue=settings.ingest_queue,
         )
 
-        # Get Qdrant client and query indexed count
-        indexed_count = 0
+        # Corpus size: distinct documents AND total chunks (placeholders
+        # excluded — the prior count included them).
+        indexed_documents = 0
+        indexed_chunks = 0
         try:
+            from nextcloud_mcp_server.vector.metrics_publisher import (  # noqa: PLC0415
+                count_indexed,
+            )
             from nextcloud_mcp_server.vector.qdrant_client import (  # noqa: PLC0415
                 get_qdrant_client,
             )
 
             qdrant_client = await get_qdrant_client()
-
-            # Count documents in collection
-            count_result = await qdrant_client.count(
-                collection_name=settings.get_collection_name()
+            indexed_documents, indexed_chunks = await count_indexed(
+                qdrant_client, settings.get_collection_name()
             )
-            indexed_count = count_result.count
 
         except Exception as e:
-            logger.warning("Failed to query Qdrant for indexed count: %s", e)
-            # Continue with indexed_count = 0
+            logger.warning("Failed to query Qdrant for indexed counts: %s", e)
+            # Continue with zeroed counts
 
         # Determine status
         status = "syncing" if pending.pending > 0 else "idle"
 
         return {
-            "indexed_count": indexed_count,
+            "indexed_documents": indexed_documents,
+            "indexed_chunks": indexed_chunks,
             "pending_count": pending.pending,
             "status": status,
         }
@@ -190,12 +194,14 @@ async def vector_sync_status_fragment(request: Request) -> HTMLResponse:
             """
         )
 
-    indexed_count = processing_status["indexed_count"]
+    indexed_documents = processing_status["indexed_documents"]
+    indexed_chunks = processing_status["indexed_chunks"]
     pending_count = processing_status["pending_count"]
     status = processing_status["status"]
 
     # Format numbers with commas for readability
-    indexed_count_str = f"{indexed_count:,}"
+    indexed_documents_str = f"{indexed_documents:,}"
+    indexed_chunks_str = f"{indexed_chunks:,}"
     pending_count_str = f"{pending_count:,}"
 
     # Status badge color and text
@@ -212,7 +218,11 @@ async def vector_sync_status_fragment(request: Request) -> HTMLResponse:
     <table>
         <tr>
             <td><strong>Indexed Documents</strong></td>
-            <td>{indexed_count_str}</td>
+            <td>{indexed_documents_str}</td>
+        </tr>
+        <tr>
+            <td><strong>Indexed Chunks</strong></td>
+            <td>{indexed_chunks_str}</td>
         </tr>
         <tr>
             <td><strong>Pending Documents</strong></td>

nextcloud_mcp_server/models/semantic.py

@@ -153,14 +153,26 @@ class VectorSyncStatusResponse(BaseResponse):
     including how many documents are indexed and how many are pending.
 
     Attributes:
-        indexed_count: Number of documents in Qdrant vector database
+        indexed_documents: Distinct documents indexed in the vector database
+        indexed_chunks: Total indexed chunks (vector points); ~N per document
+        indexed_count: DEPRECATED alias of indexed_chunks
         pending_count: Number of documents in processing queue
         status: Current sync status ("idle" or "syncing")
         enabled: Whether vector sync is enabled
     """
 
+    indexed_documents: int = Field(
+        default=0, description="Distinct documents indexed in the vector database"
+    )
+    indexed_chunks: int = Field(
+        default=0, description="Total indexed chunks (vector points); ~N per document"
+    )
     indexed_count: int = Field(
-        default=0, description="Number of documents indexed in vector database"
+        default=0,
+        description=(
+            "DEPRECATED alias of indexed_chunks (the chunk/point count). Use "
+            "indexed_documents for the distinct-document count."
+        ),
     )
     pending_count: int = Field(
         default=0, description="Number of documents pending processing"

nextcloud_mcp_server/server/semantic.py

@@ -18,7 +18,6 @@ from mcp.types import (
     ToolAnnotations,
 )
 from pydantic import Field
-from qdrant_client.models import Filter
 
 from nextcloud_mcp_server.auth import require_scopes
 from nextcloud_mcp_server.config import get_settings
@@ -41,7 +40,7 @@ from nextcloud_mcp_server.search.bm25_hybrid import BM25HybridSearchAlgorithm
 from nextcloud_mcp_server.search.context import get_chunk_with_context
 from nextcloud_mcp_server.search.verification import verify_search_results
 from nextcloud_mcp_server.utils.validation import parse_modified_timestamp
-from nextcloud_mcp_server.vector.placeholder import get_placeholder_filter
+from nextcloud_mcp_server.vector.metrics_publisher import count_indexed
 from nextcloud_mcp_server.vector.qdrant_client import get_qdrant_client
 
 logger = logging.getLogger(__name__)
@@ -982,28 +981,27 @@ def configure_semantic_tools(mcp: FastMCP):
                 ingest_queue=settings.ingest_queue,
             )
 
-            # Get Qdrant client and query indexed count
-            indexed_count = 0
+            # Corpus size: distinct documents AND total chunks (placeholders
+            # excluded). A single "indexed" figure is ambiguous because each
+            # document fans out to ~N chunks.
+            indexed_documents = 0
+            indexed_chunks = 0
             try:
                 qdrant_client = await get_qdrant_client()
-
-                # Count documents in collection, excluding placeholders
-                # Placeholders are zero-vector points used to track processing state
-                count_result = await qdrant_client.count(
-                    collection_name=settings.get_collection_name(),
-                    count_filter=Filter(must=[get_placeholder_filter()]),
+                indexed_documents, indexed_chunks = await count_indexed(
+                    qdrant_client, settings.get_collection_name()
                 )
-                indexed_count = count_result.count
-
             except Exception as e:
-                logger.warning("Failed to query Qdrant for indexed count: %s", e)
-                # Continue with indexed_count = 0
+                logger.warning("Failed to query Qdrant for indexed counts: %s", e)
+                # Continue with zeroed counts
 
             # Determine status
             status = "syncing" if pending.pending > 0 else "idle"
 
             return VectorSyncStatusResponse(
-                indexed_count=indexed_count,
+                indexed_documents=indexed_documents,
+                indexed_chunks=indexed_chunks,
+                indexed_count=indexed_chunks,  # deprecated alias
                 pending_count=pending.pending,
                 status=status,
                 enabled=True,

tests/unit/test_vector_sync_status_model.py

@@ -0,0 +1,36 @@
+"""Unit tests for VectorSyncStatusResponse documents-vs-chunks fields."""
+
+import pytest
+
+from nextcloud_mcp_server.models.semantic import VectorSyncStatusResponse
+
+pytestmark = pytest.mark.unit
+
+
+def test_vector_sync_status_documents_and_chunks() -> None:
+    """Exposes documents AND chunks; indexed_count is a deprecated chunks alias."""
+    response = VectorSyncStatusResponse(
+        indexed_documents=486,
+        indexed_chunks=16039,
+        indexed_count=16039,  # deprecated alias
+        pending_count=2214,
+        status="syncing",
+        enabled=True,
+        ingest_queue="memory",
+    )
+
+    data = response.model_dump()
+    assert data["indexed_documents"] == 486
+    assert data["indexed_chunks"] == 16039
+    # Alias mirrors chunks (not documents) for back-compat.
+    assert data["indexed_count"] == data["indexed_chunks"]
+    assert data["pending_count"] == 2214
+
+
+def test_vector_sync_status_defaults_zeroed() -> None:
+    """New corpus fields default to 0 (disabled / pre-sync path)."""
+    response = VectorSyncStatusResponse(status="disabled", enabled=False)
+    data = response.model_dump()
+    assert data["indexed_documents"] == 0
+    assert data["indexed_chunks"] == 0
+    assert data["indexed_count"] == 0