refactor: resolve isConnected naming conflict

Rename analyzer.isConnected to isGraphConnected to avoid conflict
with graph-spec.isConnected (type guard for GraphSpec).

Update validation/index to not re-export isConnected from helpers.

Author: Mearman

packages/algorithms/src/index.ts

@@ -3,7 +3,8 @@
  */
 
 // Graph property analysis (moved to @bibgraph/graph-gen)
-// export * from "./graph-spec-analyzer";
+// Re-export for backward compatibility
+export * from "@bibgraph/graph-gen";
 
 // Core analysis algorithms
 export * from "./analysis/scc";

packages/graph-gen/src/graph-spec-analyzer.ts

@@ -2061,9 +2061,10 @@ export function isRegular(g: AnalyzerGraph): boolean {
 }
 
 /**
- * Check if graph is connected.
+ * Check if graph is connected (runtime check for AnalyzerGraph).
+ * Note: Different from graph-spec.isConnected which is a type guard for GraphSpec.
  */
-export function isConnected(g: AnalyzerGraph): boolean {
+export function isGraphConnected(g: AnalyzerGraph): boolean {
   return axisKindIs("connectivity", "connected")(g);
 }
 

packages/graph-gen/src/index.ts

@@ -5,5 +5,17 @@
  * and mathematical constraint validation.
  */
 
-// Placeholder exports - will be populated when moving code from algorithms package
-export {};
+// Graph specification types
+export * from "./graph-spec";
+
+// Graph property analysis
+export * from "./graph-spec-analyzer";
+
+// Mathematical constraint validation
+export * from "./graph-spec-constraints";
+
+// Graph validation
+export * from "./validation/index";
+
+// Test fixture generation
+export * from "./graph-generator";

packages/graph-gen/src/validation/index.ts

@@ -10,12 +10,14 @@ export type { PropertyValidationResult, GraphValidationResult } from './types';
 
 // Export helper functions
 export {
-  isConnected,
   buildAdjacencyList,
   findComponentsForDensity,
   checkBipartiteWithBFS
 } from './helper-functions';
 
+// Note: isConnected is not re-exported to avoid conflict with graph-spec.isConnected
+// Import directly from './helper-functions' if needed for runtime graph checking
+
 // Export basic validators
 export {
   validateDirectionality,