Update src/streamlit_app.py

src/streamlit_app.py

@@ -537,25 +537,29 @@ with tab3:
         api_author_name = st.text_input(
             "Author Name",
             placeholder="e.g., John Smith",
-            help="Search for works by a specific author"
+            help="Search for works by a specific author",
+            key="api_author_name"
         )
         
         api_institution = st.text_input(
             "Institution",
             placeholder="e.g., Harvard University",
-            help="Filter by institution/affiliation"
+            help="Filter by institution/affiliation",
+            key="api_institution"
         )
         
         api_topic = st.text_input(
             "Topic/Keyword",
             placeholder="e.g., machine learning",
-            help="Search by topic or keyword"
+            help="Search by topic or keyword",
+            key="api_topic"
         )
         
         api_journals = st.text_area(
             "Journal(s)",
             placeholder="Nature\nScience\nCell",
-            help="Enter journal names, one per line. Leave blank for all journals."
+            help="Enter journal names, one per line. Leave blank for all journals.",
+            key="api_journals"
         )
     
     with col2:
@@ -564,7 +568,8 @@ with tab3:
             min_value=1900,
             max_value=2025,
             value=2020,
-            help="Start year for publication range"
+            help="Start year for publication range",
+            key="api_year_from"
         )
         
         api_year_to = st.number_input(
@@ -572,7 +577,8 @@ with tab3:
             min_value=1900,
             max_value=2025,
             value=2025,
-            help="End year for publication range"
+            help="End year for publication range",
+            key="api_year_to"
         )
         
         api_min_citations = st.number_input(
@@ -580,7 +586,8 @@ with tab3:
             min_value=0,
             max_value=10000,
             value=0,
-            help="Filter works with at least this many citations"
+            help="Filter works with at least this many citations",
+            key="api_min_citations"
         )
         
         api_max_citations = st.number_input(
@@ -588,7 +595,8 @@ with tab3:
             min_value=0,
             max_value=100000,
             value=0,
-            help="Filter works with at most this many citations (0 = no limit)"
+            help="Filter works with at most this many citations (0 = no limit)",
+            key="api_max_citations"
         )
         
         api_max_results = st.number_input(
@@ -597,8 +605,9 @@ with tab3:
             max_value=50000,
             value=1000,
             step=100,
-            help="Maximum number of works to retrieve (Warning: >10,000 may be slow)"
-        )
+            help="Maximum number of works to retrieve (Warning: >10,000 may be slow)",
+            key="api_max_results"
+        ):
         api_author_name = st.text_input(
             "Author Name",
             placeholder="e.g., John Smith",