feat(ipuaro): add inline dependency graph to initial context

- Add formatDependencyGraph() to show file relationships in LLM context
- Add includeDepsGraph option to ContextConfigSchema (default: true)
- Format: "services/user: → types/user ← controllers/user"
- Hub files shown first, sorted by total connections
- 21 new tests for dependency graph functionality

packages/ipuaro/src/shared/constants/config.ts

@@ -115,6 +115,7 @@ export const ContextConfigSchema = z.object({
     autoCompressAt: z.number().min(0).max(1).default(0.8),
     compressionMethod: z.enum(["llm-summary", "truncate"]).default("llm-summary"),
     includeSignatures: z.boolean().default(true),
+    includeDepsGraph: z.boolean().default(true),
 })
 
 /**