components assesment #2

add 2.15_components_assesment.md step

docs/02_components/12_route_chunk_manager/route_chunk_manager_spec.md

@@ -462,13 +462,15 @@ bool: True if merge successful
 1. Verify both chunks exist
 2. Verify chunk_id_1 is anchored (has_anchor=True)
 3. Validate chunks can be merged (not already merged, not same chunk)
-4. Call F10.merge_chunks(chunk_id_1, chunk_id_2, transform)
-5. Update chunk_id_1 state:
+4. **Merge direction**: chunk_id_1 (newer, source) merges INTO chunk_id_2 (older, target)
+5. Call F10.merge_chunks(chunk_id_1, chunk_id_2, transform)
+6. Update chunk_id_1 state:
    - Set is_active=False
    - Set matching_status="merged"
    - Call deactivate_chunk(chunk_id_1)
-6. Update chunk_id_2 state (if needed)
-7. Return True
+7. Update chunk_id_2 state (if needed)
+8. Persist chunk state via F03 Flight Database.save_chunk_state()
+9. Return True
 
 **Validation**:
 - Both chunks must exist
@@ -476,6 +478,11 @@ bool: True if merge successful
 - chunk_id_1 must not already be merged
 - chunk_id_1 and chunk_id_2 must be different
 
+**Merge Direction**:
+- **chunk_id_1**: Source chunk (newer, recently anchored)
+- **chunk_id_2**: Target chunk (older, main trajectory or previous chunk)
+- Newer chunks merge INTO older chunks to maintain chronological consistency
+
 **Test Cases**:
 1. **Merge anchored chunks**: Chunks merged successfully, chunk_id_1 deactivated
 2. **Merge unanchored chunk**: Returns False (validation fails)
@@ -570,6 +577,7 @@ bool: True if marked successfully
 - **F05 Image Input Pipeline**: Image retrieval
 - **F08 Global Place Recognition**: Descriptor computation
 - **F07 Sequential VO**: VO results for chunk building
+- **F03 Flight Database**: Chunk state persistence
 
 ### External Dependencies
 - **numpy**: Array operations