add unnatural aas and fix cyclic recog

app.py

@@ -243,14 +243,16 @@ def analyze_single_smiles(smiles):
     """Analyze a single SMILES string"""
     try:
         is_cyclic, peptide_cycles, aromatic_cycles = is_cyclic_peptide(smiles)
+        sidenote =  None
         sequence = parse_peptide(smiles)
         if is_cyclic and len(sequence) == 7:
-            sequence = 'This is some peptide sequence with modified side chains.'
-        
+            sidenote = 'This is some peptide sequence with modified side chains.'
+
         details = {
             #'SMILES': smiles,
             'Sequence': sequence,
             'Is Cyclic': 'Yes' if is_cyclic else 'No',
+            'Sidenote': sidenote
             #'Peptide Cycles': ', '.join(peptide_cycles) if peptide_cycles else 'None',
             #'Aromatic Cycles': ', '.join(aromatic_cycles) if aromatic_cycles else 'None'
         }