fix(settings): improve suggest feedback for empty/failed LLM results

- Catch all exceptions (not just RuntimeError) so FileNotFoundError,
  connection errors, etc. surface as error messages rather than crashing
  the page silently
- Show "No new suggestions found" info message when the LLM returns
  empty arrays — previously the spinner completed with no UI feedback
- Hint to upload resume when RESUME_PATH is missing (new users)
- Only rerun() when there are actual results to display

app/pages/2_Settings.py

@@ -401,21 +401,31 @@ with tab_search:
         with st.spinner("Asking LLM for suggestions…"):
             try:
                 suggestions = _suggest_search_terms(_current_titles, RESUME_PATH, _blocklist, _user_profile)
-            except RuntimeError as _e:
+            except Exception as _e:
+                _err_msg = str(_e)
+                if "exhausted" in _err_msg.lower() or isinstance(_e, RuntimeError):
                     st.warning(
-                    f"No LLM backend available: {_e}. "
+                        f"No LLM backend available: {_err_msg}. "
                         "Check that Ollama is running and has GPU access, or enable a cloud backend in Settings → System → LLM.",
                         icon="⚠️",
                     )
+                else:
+                    st.error(f"Suggestion failed: {_err_msg}", icon="🚨")
                 suggestions = None
         if suggestions is not None:
             # Add suggested titles to options list (not auto-selected — user picks from dropdown)
             _opts = list(st.session_state.get("_sp_title_options", []))
-            for _t in suggestions.get("suggested_titles", []):
-                if _t not in _opts:
-                    _opts.append(_t)
+            _new_titles = [_t for _t in suggestions.get("suggested_titles", []) if _t not in _opts]
+            _opts.extend(_new_titles)
             st.session_state["_sp_title_options"] = _opts
             st.session_state["_sp_suggestions"] = suggestions
+            if not _new_titles and not suggestions.get("suggested_excludes"):
+                _resume_hint = " Upload your resume in Settings → Resume Profile for better results." if not RESUME_PATH.exists() else ""
+                st.info(
+                    f"No new suggestions found — the LLM didn't generate anything new for these titles.{_resume_hint}",
+                    icon="ℹ️",
+                )
+            else:
                 st.rerun()
 
     if st.session_state.get("_sp_suggestions"):