improving components consistency

docs/02_components/helpers/h04_faiss_index_manager_spec.md

@@ -40,12 +40,22 @@ class IFaissIndexManager(ABC):
 
 ## Component Description
 
-Manages Faiss indices for DINOv2 descriptor similarity search. H04 builds indexes from UAV image descriptors for:
-1. **Loop closure detection**: Find when UAV revisits previously seen areas within the same flight
-2. **Chunk-to-chunk matching**: Match disconnected chunks to each other
-3. **Flight-to-flight matching**: Match current flight to previous flights in same area
+Manages Faiss indices for DINOv2 descriptor similarity search. H04 provides generic Faiss index operations used by:
 
-**Index Source**: Descriptors are computed from UAV images using F08's DINOv2 encoder, NOT from satellite images. The index enables finding similar UAV viewpoints.
+### Satellite Index (Primary Use Case)
+- **Index format**: IVF1000 (Inverted File with 1000 clusters)
+- **Index source**: Pre-built by external Satellite Provider (Maxar, Google Maps, Copernicus, etc.)
+- **Index delivery**: Provider delivers index file + tile metadata when tiles are fetched on demand
+- **Index updates**: Provider rebuilds index when new satellite tiles become available
+- **Usage**: F08 Global Place Recognition loads this index via H04.load_index()
+
+### UAV Index (Optional, Future Use)
+For loop closure and chunk-to-chunk matching:
+1. **Loop closure detection**: Find when UAV revisits previously seen areas
+2. **Chunk-to-chunk matching**: Match disconnected chunks to each other
+3. **Flight-to-flight matching**: Match current flight to previous flights
+
+**Note**: H04 is a low-level utility that manages ANY Faiss index. It does NOT know whether the index contains satellite or UAV descriptors.
 
 ## API Methods