Enhanced usecase example weave tangle for later workflows

workplans/MKTT-WP-0007-advanced-query-and-local-index-backend.md

@@ -10,8 +10,10 @@ planning_priority: P2
 planning_order: 60
 depends_on_workplans:
   - MKTT-WP-0006
+related_workplans:
+  - MKTT-WP-0010
 created: "2026-05-03"
-updated: "2026-05-03"
+updated: "2026-05-04"
 state_hub_workstream_id: "d61a82e4-651a-4df2-944a-9ff996b2e1f6"
 ---
 
@@ -22,6 +24,10 @@ state_hub_workstream_id: "d61a82e4-651a-4df2-944a-9ff996b2e1f6"
 Implement the first practical backend use case: cached AST introspection,
 JSONPath querying, SQLite metadata, and FTS5 search over Markdown documents.
 
+This backend should later be able to index `MKTT-WP-0010` references, named
+regions, chunks, and processor provenance without changing its basic storage
+contract.
+
 ## P7.1 - Implement local snapshot store
 
 ```task
@@ -77,6 +83,9 @@ state_hub_task_id: "479f11a3-4ab4-451b-991c-7f143f2bffea"
 Persist source files, content hashes, frontmatter, headings, sections, blocks,
 and metrics in SQLite.
 
+Keep schema extension points for reference edges, named regions, chunks, and
+processor outputs.
+
 ## P7.5 - Add FTS5 section/block search
 
 ```task
@@ -100,6 +109,8 @@ state_hub_task_id: "7d9472e6-0716-435b-866c-d2c66ad786cf"
 
 Refresh only changed files based on content hash and parser version.
 
+Include dependency invalidation hooks for future transclusion/reference graphs.
+
 ## P7.7 - Add local index CLI
 
 ```task