Replace the old local-only backend mode with a new server connection
flow that lets the web UI connect to any running GitNexus server,
download the pre-built knowledge graph, and explore it without WASM.
- Add server-connection service with streaming download and progress
- Replace DropZone backend tab with server connect UI (URL input, progress bar, cancel)
- Add repo switcher dropdown in Header when multiple repos are indexed
- Mount MCP server over StreamableHTTP at /api/mcp for remote AI tool access
- Refactor api.ts to query KuzuDB directly instead of routing through LocalBackend
- Fix KuzuDB adapter to support switching between databases (close old before opening new)
- Extract createMCPServer() from startMCPServer() for transport-agnostic reuse
- Support ?server= query param for bookmarkable auto-connect
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add https://gitnexus.vercel.app to CORS allowed origins so the
deployed site can connect to the local backend server.
- Replace naive createHttpTextSearch (substring matching via Cypher)
with createHttpHybridSearch that calls /api/search for full
BM25 + semantic + RRF hybrid search on the server.
- Set isEmbeddingReady to false in backend mode (no local embedder),
which also fixes {{QUERY_VECTOR}} handling — the existing error
path in tools.ts now correctly returns a helpful message.
- Set isBM25Ready to true (available via server's hybrid search).
- Removes the Cypher injection bug (wrong escape char) since the
function that contained it was replaced entirely.
Add HTTP wrapper functions (executeQuery, textSearch) to the ingestion
worker and a new initializeBackendAgent method that creates the agent
with HTTP-backed tool closures instead of local KuzuDB. useAppState
detects backend mode and routes agent initialization accordingly.
The WASM worker DB is never initialized in backend mode, so
startEmbeddings() now returns early. Also hides the embedding
status button in the header when using the local backend.
- Fix field name mismatch in /api/repo (repoPath -> path)
- Add setProgress(null) on successful backend repo load
- Prevent DropZone tab auto-switch from re-triggering
- Make isDatabaseReady() return true in backend mode
- Increase fetchGraph timeout to 60s for large repos
- Replace dynamic import with static import for runCypherQuery
