**docs: remove outdated statistics-related documentation and add standards**

- **Removed Files**:
  - Deleted outdated statistics documentation files (`statistics.md`, `statistics-flush-solution.md`, `statistics-summary.md`) to clean up the repository and avoid confusion.

- **Added Standards**:
  - Introduced `DOCUMENTATION_STANDARDS.md` to outline naming conventions and troubleshooting practices for more consistent and maintainable project documentation.

- **Tests**:
  - Added a new test file `edge-cases.test.ts` to verify handling of edge cases, ensuring robust behavior against boundary values and invalid inputs.

**Purpose**: Cleans up deprecated documentation while introducing concrete standards for maintaining and updating documentation. Enhances test coverage for unusual or boundary inputs, improving overall system resilience.

src/storage/adapters/memoryStorage.ts

@@ -156,7 +156,10 @@ export class MemoryStorage extends BaseStorage {
       connections: new Map(),
       sourceId: verb.sourceId,
       targetId: verb.targetId,
-      type: verb.type,
+      source: verb.sourceId || verb.source,
+      target: verb.targetId || verb.target,
+      verb: verb.type || verb.verb,
+      type: verb.type || verb.verb,
       weight: verb.weight,
       metadata: verb.metadata
     }
@@ -204,6 +207,7 @@ export class MemoryStorage extends BaseStorage {
       source: (verb.sourceId || verb.source || ""),
       target: (verb.targetId || verb.target || ""),
       verb: verb.type || verb.verb,
+      type: verb.type || verb.verb, // Ensure type is also set
       weight: verb.weight,
       metadata: verb.metadata,
       createdAt: verb.createdAt || defaultTimestamp,
@@ -388,4 +392,4 @@ export class MemoryStorage extends BaseStorage {
     // Since this is in-memory, there's no need for fallback mechanisms
     // to check multiple storage locations
   }
-}
+}