[docs] Essential cookbook added and overall revamp to the structure of cookbooks (#3668)

docs/open-source/configuration.mdx

@@ -168,6 +168,6 @@ memory = Memory.from_config_file("config.yaml")
     title="Deploy with Docker Compose"
     description="Follow the end-to-end OSS deployment walkthrough."
     icon="server"
-    href="/examples/mem0-with-ollama"
+    href="/cookbooks/companions/local-companion-ollama"
   />
 </CardGroup>

docs/open-source/overview.mdx

@@ -47,7 +47,7 @@ Mem0 Open Source delivers the same adaptive memory engine as the platform, but p
 </CardGroup>
 
 <CardGroup cols={2}>
-  <Card title="Deploy with Docker Compose" icon="server" href="/examples/mem0-with-ollama">
+  <Card title="Deploy with Docker Compose" icon="server" href="/cookbooks/companions/local-companion-ollama">
     Follow the reference deployment to persist memories and expose REST endpoints.
   </Card>
   <Card title="Use the REST API" icon="code" href="/open-source/features/rest-api">

docs/open-source/python-quickstart.mdx

@@ -92,4 +92,4 @@ Explore async support, graph memory, and multi-agent memory organization
 
 - **[OpenAI Compatibility](/open-source/features/openai_compatibility)** - Use Mem0 with OpenAI-compatible chat completions
 - **[Contributing Guide](/contributing/development)** - Learn how to contribute to Mem0
-- **[Examples](/examples/mem0-with-ollama)** - See Mem0 in action with Ollama and other integrations
+- **[Examples](/cookbooks/companions/local-companion-ollama)** - See Mem0 in action with Ollama and other integrations