feat: evolve retrieval layer with content_type, memory FTS, forget(), and recap references

Extract schema DDL into scripts/schema.sql. Add content_type and is_meta
  columns to messages for transcript control-plane filtering. Introduce
  FTS5-backed memory recall with safe tokenization, memory soft-delete via
  forget() through the renamed --attune runtime, and anchors on memory
  records. Expand query helpers (includeMeta, thread opts, overview
  project-path awareness). Add per-card recap retrieval and writing
  references under references/recap/.

.gitignore

@@ -2,3 +2,6 @@
 plans/
 .skillopt-backups
 tests/
+node_modules/
+dist-renderer/
+release/