fix(docs): SEO improvements for page titles, internal links, and URL structure (#7224)

docs/components/rerankers/overview.mdx

@@ -1,5 +1,7 @@
 ---
 title: Overview
+seo:
+  title: "Reranker Providers Overview - Mem0"
 description: 'Pick the right reranker path to boost Mem0 search relevance.'
 ---
 
@@ -13,10 +15,10 @@ Reranking trades extra latency for better precision. Start once you have baselin
 
 <CardGroup cols={3}>
   <Card title="Cohere" icon="/images/provider-icons/cohere.svg" href="/components/rerankers/models/cohere" />
-  <Card title="Sentence Transformers" icon="vector-square" href="/components/rerankers/models/sentence_transformer" />
+  <Card title="Sentence Transformers" icon="vector-square" href="/components/rerankers/models/sentence-transformer" />
   <Card title="Hugging Face" icon="/images/provider-icons/huggingface.svg" href="/components/rerankers/models/huggingface" />
-  <Card title="LLM Reranker" icon="wand-magic-sparkles" href="/components/rerankers/models/llm_reranker" />
-  <Card title="Zero Entropy" icon="/images/provider-icons/zeroentropy.svg" href="/components/rerankers/models/zero_entropy" />
+  <Card title="LLM Reranker" icon="wand-magic-sparkles" href="/components/rerankers/models/llm-reranker" />
+  <Card title="Zero Entropy" icon="/images/provider-icons/zeroentropy.svg" href="/components/rerankers/models/zero-entropy" />
 </CardGroup>
 
 <Note>
@@ -54,13 +56,13 @@ All five rerankers are available in both the Python and the [TypeScript](/open-s
     title="Zero Entropy Guide"
     description="Adopt the managed neural reranker for production workloads."
     icon="sparkles"
-    href="/components/rerankers/models/zero_entropy"
+    href="/components/rerankers/models/zero-entropy"
   />
   <Card
     title="Sentence Transformers"
     description="Keep reranking on-device with cross-encoder models."
     icon="microchip"
-    href="/components/rerankers/models/sentence_transformer"
+    href="/components/rerankers/models/sentence-transformer"
   />
 </CardGroup>