0.2.6

Summary of all fixes in this session:

```
MindBank API:
  1. Count endpoint          GET /nodes?count=true
  2. Recalc endpoint         POST /nodes/recalculate
  3. Importance scoring      RecalculateImportance() with 5-factor formula

Dashboard:
  4. Node count              Uses count endpoint, not limit=1000
  5. Namespace bars          Uses /graph (200 nodes, not 50)
  6. Error logging           console.error in api()
  7. Edge safety             confirm() on delete
  8. Importance display      Auto-recalc + manual button

Update script:
  9. Tarball extraction      find() precedence fix

Hermes plugin:
 10. Field name mismatch     "type" → "node_type" (3 locations)
 11. Dedup on node create    _is_duplicate() search before store
 12. Noise reduction         Skip <30 chars, stricter keywords
 13. Session end overlap     Dedup + stricter extraction
 14. MCP process cleanup     Kill stale processes >2 hours