feat: add official mem0 CLI (Python & TypeScript) (#4575)

docs/platform/quickstart.mdx

@@ -46,6 +46,10 @@ const client = new MemoryClient({ apiKey: 'your-api-key' });
 export MEM0_API_KEY="your-api-key"
 ```
 
+```bash CLI
+mem0 init --api-key "your-api-key"
+```
+
 </CodeGroup>
 </Step>
 
@@ -80,6 +84,10 @@ curl -X POST https://api.mem0.ai/v1/memories/add \
   }'
 ```
 
+```bash CLI
+mem0 add "I'm a vegetarian and allergic to nuts." --user-id user123
+```
+
 </CodeGroup>
 </Step>
 
@@ -105,6 +113,10 @@ curl -X POST https://api.mem0.ai/v1/memories/search \
   }'
 ```
 
+```bash CLI
+mem0 search "What are my dietary restrictions?" --user-id user123
+```
+
 </CodeGroup>
 
 **Output:**