fix: add error logging for session message saving

- Added console.error logs to debug save failures
- Now logs when no current session exists
- Now logs when saveMessage returns null

src/views/SearchView.vue

@@ -1285,7 +1285,7 @@ async function sendMessage() {
         // Save to session if there's a current session
         if (currentSession.value) {
           // Save user message
-          await saveMessage(currentSession.value.id, {
+          const userMsg = await saveMessage(currentSession.value.id, {
             role: 'user',
             content: q,
             mode: mode.value
@@ -1300,8 +1300,15 @@ async function sendMessage() {
               results: lastMsg.results
             })
           }
+          if (!userMsg) {
+            console.error('[SearchView] Failed to save message')
+          }
+        } else {
+          console.error('[SearchView] No current session to save to')
         }
-      } catch {}
+      } catch (e: any) {
+        console.error('[SearchView] Error saving message:', e)
+      }
       nextTick(() => {
         queryInputEl.value?.focus()
       })