Add repeatable Tauri runtime verification for KG search and editor autocomplete

[AlexMikhalev]

Problem

The desktop app now builds, but packaged/runtime verification for Tauri mode is still lighter than the web proof path. The app needs explicit regression coverage that exercises bundled resources and Tauri commands, not only the Vite web flow.

Goal

Add a repeatable packaged/debug Tauri verification path for knowledge graph search and editor autocomplete.

Scope

• validate app startup with bundled defaults/resources
• exercise Tauri search, search_kg_terms, find_documents_for_kg_term, and get_autocomplete_suggestions
• add a regression script or automated test for the packaged/debug desktop path
• document manual fallback steps if full browser automation remains impractical

Acceptance

• Tauri desktop flow is documented and reproducible from a clean checkout
• KG search and article editor autocomplete are verified in Tauri mode
• failures clearly separate packaging/resource issues from frontend issues