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KaifAhmad1andClaude Sonnet 4.6 3ea1283626 feat(explorer): add Semantica Knowledge Explorer UI with full feature set
## Folder & Project
- Renamed `semantica-explorer/` → `explorer/` (cleaner path)
- Browser tab title: `Semantica Knowledge Explorer`
- Brand pill: `SEM` → `SKE` (tooltip: Semantica Knowledge Explorer)
- Nav rail label: `Explore` → `Knowledge Explorer`
- package.json name: `semantica-knowledge-explorer`
- Downgraded Vite 8 → Vite 5 for Node v20.17.0 compatibility

## App Shell
- Dynamic per-workspace kicker labels replacing static "Workspace" pill:
  Graph Studio · Vocabulary Browser · Reasoning Engine · SPARQL Query ·
  Decision Intelligence · Knowledge Audit · Graph Governance

## Enrich Workspace — 2 new tabs
### Entity Resolution tab
- Similarity threshold slider (0.50–0.99)
- Run Dedup Scan → POST /api/enrich/dedup
- Flagged pairs list with colour-coded score bars (red/amber/green)
- Expandable inline diff: primary vs duplicate side-by-side
- One-click Merge → POST /api/enrich/merge with logEvent dispatch
- Dismiss per pair; Clear all button
- Merge history sidebar pulled live from Registry store

### Registry tab (Document Registry)
- Live chronological audit log of all KG mutations in-session
- Colour-coded op-type badges: IMPORT · MERGE · ADD NODE · ADD EDGE ·
  INFER · DELETE · EXPORT · VOCAB
- Filter pills to narrow by operation type
- Expandable JSON detail rows per entry
- Clear log button
- Entirely client-side via registryStore (no backend needed)

## Manage Workspace — 2 new tabs
### KG Overview tab
- Stats chips: total nodes, edges, graph density
- Node type breakdown bar chart (up to 8 types, colour-coded)
- Edge type breakdown bar chart from /api/graph/stats
- Top-10 most connected nodes ranked by degree
- Skeleton loading states + Refresh button

### Ontology Summary tab
- Read-only SKOS scheme tree (scheme → top concepts → narrower)
- Concept detail panel: labels, notation, description, narrower nav
- "Open Full Browser" button deep-links to Vocabulary Browser tab

## Decision Workspace polish
- CausalFlowDiagram: vertical node cards connected by relationship pills
- Outcome badges: colour-coded (green=approved, red=rejected, amber=deferred)
- Live filter input across decision ID, category, and outcome
- Animated skeleton loading while list fetches

## Graph Inspector polish
- PathFlowViz: clickable node chips connected by edge-type labels;
  clicking a chip focuses that node in the canvas
- Link Prediction button shows spinner while computing
- Empty states for path trace and candidate links sections

## Registry dispatch — WebSocket
- ADD_NODE events → logEvent("add-node", …) in GraphWorkspace WS handler
- ADD_EDGE events → logEvent("add-edge", …) in GraphWorkspace WS handler
- Import, Export, Merge already dispatched logEvent on API response

## Graph visibility overhaul
### Edge colours (were nearly transparent, now clearly visible)
- edgeBackbone:    rgba(…, 0.04)  → rgba(…, 0.38)
- edgeStructure:   rgba(…, 0.009) → rgba(…, 0.28)
- edgeInspection:  rgba(…, 0.026) → rgba(…, 0.48)
- Muted edges:     0.009–0.02    → 0.12–0.26
- Focus edges:     0.16          → 0.42

### Edge sizes
- default minSize: 0.18 → 0.9 (always at least 1 pixel wide)
- path minSize:    1.8  → 2.4
- inactive/muted:  hide:true → hide:false (dimmed not hidden)

### Node sizes
- default sizeMultiplier: 0.72 → 0.92
- default minSize:        0.68 → 3.5 (visible at all zoom levels)
- overview nodeScale:     0.66 → 0.88
- nodeTintMix (colour):   0.03 → 0.14
- nodeCoreMix (brightness): 0.52 → 0.72

### Label budget
- overview:   10  → 28 labels
- structure:  36  → 60 labels
- inspection: 80  → 120 labels

### Sigma settings
- renderEdgeLabels:        false → true  (relationship type on every edge)
- edgeLabelSize:           —    → 10
- labelRenderedSizeThreshold: 4 → 2
- labelDensity:            0.86 → 1.1
- hideLabelsOnMove:        true → false (labels stay visible while panning)
- hideEdgesOnMove:         true → false (edges stay visible while panning)
- minCameraRatio:          —    → 0.04 (prevents zooming inside a node)
- maxCameraRatio:          —    → 8    (graph stays visible when zoomed out)

### Zoom controls
- Added Zoom In (+) and Zoom Out (−) buttons to graph toolbar
- Smooth animated zoom via camera.animatedZoom / animatedUnzoom (200ms)
- Mouse scroll wheel clamped between minCameraRatio and maxCameraRatio

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-13 13:40:40 +05:30

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