feat: Implement NATS-based event processing for note smart features and add Qdrant collection auto-creation.

notes-infra/src/factory.rs

@@ -47,6 +47,7 @@ pub async fn build_vector_store(
     match provider {
         VectorProvider::Qdrant { url, collection } => {
             let adapter = crate::vector::qdrant::QdrantVectorAdapter::new(url, collection)?;
+            adapter.create_collection_if_not_exists().await?;
             Ok(Arc::new(adapter))
         }
     }

notes-infra/src/vector/qdrant.rs

@@ -2,7 +2,10 @@ use async_trait::async_trait;
 use notes_domain::errors::{DomainError, DomainResult};
 use notes_domain::ports::VectorStore;
 use qdrant_client::Qdrant;
-use qdrant_client::qdrant::{PointStruct, SearchPointsBuilder, UpsertPointsBuilder, Value};
+use qdrant_client::qdrant::{
+    CreateCollectionBuilder, Distance, PointStruct, SearchPointsBuilder, UpsertPointsBuilder,
+    Value, VectorParamsBuilder,
+};
 use std::collections::HashMap;
 use std::sync::Arc;
 use uuid::Uuid;
@@ -23,6 +26,31 @@ impl QdrantVectorAdapter {
             collection_name: collection_name.to_string(),
         })
     }
+
+    pub async fn create_collection_if_not_exists(&self) -> DomainResult<()> {
+        if !self
+            .client
+            .collection_exists(&self.collection_name)
+            .await
+            .map_err(|e| {
+                DomainError::InfrastructureError(format!(
+                    "Failed to check collection existence: {}",
+                    e
+                ))
+            })?
+        {
+            self.client
+                .create_collection(
+                    CreateCollectionBuilder::new(self.collection_name.clone())
+                        .vectors_config(VectorParamsBuilder::new(384, Distance::Cosine)),
+                )
+                .await
+                .map_err(|e| {
+                    DomainError::InfrastructureError(format!("Failed to create collection: {}", e))
+                })?;
+        }
+        Ok(())
+    }
 }
 
 #[async_trait]