fix: resolve bugs 01 through 08 and set Ollama TTL to 1h

app/routers/dictionary.py

@@ -38,11 +38,15 @@ async def api_lookup(
         raise HTTPException(status_code=400, detail="Query term cannot be empty")
     data = await lookup_term(query_str)
 
+    # Ensure term is always present in response
+    target_term = data.get("term") or data.get("english_term") or query_str
+    data["term"] = target_term
+
     # Check if this term already exists in user's dictionary
     with get_db() as conn:
         existing = conn.execute(
-            "SELECT id, term, translation, context_sentence, tags, collection, srs_state, srs_reps FROM vocabulary_cards WHERE user_id = ? AND lower(trim(term)) = lower(trim(?))",
-            (user["id"], query_str),
+            "SELECT id, term, translation, context_sentence, tags, collection, srs_state, srs_reps FROM vocabulary_cards WHERE user_id = ? AND (lower(trim(term)) = lower(trim(?)) OR lower(trim(term)) = lower(trim(?)))",
+            (user["id"], target_term, query_str),
         ).fetchone()
         if existing:
             data["in_library"] = True