Add run history dropdown, text wrapping, and PostHog debug flag

- Run history: dropdown selector preserves past run results within a session
- Dataframe: wrap=True and max_chars=200 for cleaner text display
- PostHog: POSTHOG_DEBUG env var to enable debug logging

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app.py

@@ -20,6 +20,7 @@ _POSTHOG_ENABLED = bool(_POSTHOG_KEY and _POSTHOG_HOST)
 posthog.api_key = _POSTHOG_KEY
 posthog.project_api_key = _POSTHOG_KEY
 posthog.host = _POSTHOG_HOST
+posthog.debug = os.environ.get("POSTHOG_DEBUG", "").lower() in ("1", "true", "yes")
 if _POSTHOG_ENABLED:
     atexit.register(posthog.shutdown)
 
@@ -252,7 +253,7 @@ async def run_agent_map(api_key, file, query, effort_label, fields_list, session
     )
     output_df.to_csv(tmp.name, index=False)
 
-    return output_df, gr.update(value=tmp.name, visible=True)
+    return output_df, tmp.name
 
 
 def _parse_research_val(val):
@@ -493,7 +494,7 @@ with gr.Blocks(
         submit_btn = gr.Button("Run", variant="primary")
 
         # Submit: read name/desc/opts from components for freshest values
-        async def on_submit(api_key_val, file_val, query_val, effort_val, session_id_val, *dynamic_vals):
+        async def on_submit(api_key_val, file_val, query_val, effort_val, session_id_val, runs_val, *dynamic_vals):
             names = dynamic_vals[:n]
             descs = dynamic_vals[n:2 * n]
             opts_vals = list(dynamic_vals[2 * n:])
@@ -510,16 +511,28 @@ with gr.Blocks(
                     entry["options"] = next(opts_iter, "")
                 fields_list.append(entry)
             try:
-                result_df, download_update = await run_agent_map(
+                result_df, download_path = await run_agent_map(
                     api_key_val, file_val, query_val, effort_val, fields_list, session_id_val
                 )
                 has_research = "research" in result_df.columns
+                run_label = f"Run {len(runs_val) + 1}: {query_val[:40].strip()}"
+                if len(query_val) > 40:
+                    run_label += "..."
+                new_run = {
+                    "label": run_label,
+                    "full_df": result_df,
+                    "download_path": download_path,
+                }
+                new_runs = runs_val + [new_run]
+                run_choices = [r["label"] for r in new_runs]
                 return (
                     gr.update(value="", visible=False),
                     result_df,
                     hide_research(result_df) if has_research else result_df,
-                    download_update,
+                    gr.update(value=download_path, visible=True),
                     gr.update(value=False, visible=has_research),
+                    new_runs,
+                    gr.update(choices=run_choices, value=run_label, visible=True),
                 )
             except gr.Error:
                 raise
@@ -533,23 +546,32 @@ with gr.Blocks(
                     gr.update(),
                     gr.update(),
                     gr.update(),
+                    gr.update(),
+                    gr.update(),
                 )
 
         submit_btn.click(
             fn=on_submit,
-            inputs=[api_key, file, query, effort, session_id] + all_text_inputs,
-            outputs=[error_box, full_results_state, output_table, download_btn, research_toggle],
+            inputs=[api_key, file, query, effort, session_id, runs_state] + all_text_inputs,
+            outputs=[error_box, full_results_state, output_table, download_btn, research_toggle, runs_state, run_selector],
         )
 
     gr.Markdown("### Results")
     error_box = gr.Markdown(visible=False, elem_classes=["error-box"])
     full_results_state = gr.State(None)
+    runs_state = gr.State([])
+    run_selector = gr.Dropdown(
+        label="Run history",
+        choices=[],
+        visible=False,
+        interactive=True,
+    )
     research_toggle = gr.Checkbox(
         label="Show research details",
         value=False,
         visible=False,
     )
-    output_table = gr.Dataframe(label="Results")
+    output_table = gr.Dataframe(label="Results", wrap=True, max_chars=200)
     download_btn = gr.File(label="Download CSV", visible=False)
 
     def toggle_research(show_full, full_df):
@@ -565,6 +587,31 @@ with gr.Blocks(
         outputs=output_table,
     )
 
+    def on_run_select(selected_label, runs, show_research):
+        if not selected_label or not runs:
+            return gr.update(), gr.update(), gr.update(), gr.update()
+        for r in runs:
+            if r["label"] == selected_label:
+                full_df = r["full_df"]
+                has_research = "research" in full_df.columns
+                if show_research:
+                    display_df = expand_research(full_df)
+                else:
+                    display_df = hide_research(full_df) if has_research else full_df
+                return (
+                    full_df,
+                    display_df,
+                    gr.update(value=r["download_path"], visible=True),
+                    gr.update(value=show_research, visible=has_research),
+                )
+        return gr.update(), gr.update(), gr.update(), gr.update()
+
+    run_selector.change(
+        on_run_select,
+        inputs=[run_selector, runs_state, research_toggle],
+        outputs=[full_results_state, output_table, download_btn, research_toggle],
+    )
+
     def on_upload(file):
         if file is None:
             return gr.update(visible=False), gr.update(visible=False)