fix: serialize property writes and expose n8n results

- Serialize property set and remove commands per vault note to avoid lost frontmatter writes.
- Wait briefly for successful property writes to hit disk before releasing the note lock.
- Return property path, name, value, type, operation, and ok status in n8n outputs.
- Include property details on continue-on-fail errors so failed items are visible in n8n.
- Bump obsidian-api to 1.0.7 and n8n-nodes-obsidian-cli-api to 0.2.8.
- Add regression coverage for concurrent property writes to the same note.

packages/n8n-nodes-obsidian-api/nodes/ObsidianApi/ObsidianApi.node.ts

@@ -31,7 +31,20 @@ export class ObsidianApi implements INodeType {
 			} catch (error) {
 				if (this.continueOnFail()) {
 					const message = error instanceof Error ? error.message : String(error);
-					returnData.push({ json: { error: message }, pairedItem: { item: itemIndex } });
+					const resource = this.getNodeParameter('resource', itemIndex, '') as string;
+					const operation = this.getNodeParameter('operation', itemIndex, '') as string;
+					const failure = resource === 'property'
+						? {
+								ok: false,
+								operation,
+								path: this.getNodeParameter('propertyPath', itemIndex, '') as string,
+								property: this.getNodeParameter('propertyName', itemIndex, '') as string,
+								value: this.getNodeParameter('propertyValue', itemIndex, '') as string,
+								type: this.getNodeParameter('propertyType', itemIndex, '') as string,
+								error: message,
+							}
+						: { ok: false, error: message };
+					returnData.push({ json: failure, pairedItem: { item: itemIndex } });
 					continue;
 				}
 				throw error;