Bind GraphService to Wails frontend

[joshuapare]

Context

GraphService exists at backend/pkg/plugin/resource/graph_service.go with three query methods:

• GetRelated() — edges from/to a resource, optional type filter
• GetRelationshipChain() — BFS traversal of a specific relationship type
• GetDependencyTree() — recursive tree of all edge types

These are fully implemented but not bound to Wails — they're missing from the Bind array in main.go (lines ~332-354).

What to do

1. Add GraphService to the Wails Bind list in main.go
2. Run wails generate module to produce TypeScript client types
3. Verify the generated TS types match the Go method signatures
4. Add a basic smoke test confirming the service initializes correctly

Files

• main.go — add to Bind array
• backend/pkg/plugin/resource/graph_service.go — already implemented, no changes needed