Fix blank page: strip 4MB of pre-baked initial Plot values; lazy compute on first interaction

app.py

@@ -1910,7 +1910,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                                               label="Chem top modes", interactive=False, wrap=True)
 
             with gr.Accordion("Pairwise coherence (basket members)", open=False):
-                ex_heat = gr.Plot(value=_INIT_HEATMAP, label="Heatmap")
+                ex_heat = gr.Plot(label="Heatmap")
 
             with gr.Accordion("Browse the mode atlas (150-200 modes per sibling)", open=False):
                 with gr.Row():
@@ -1991,7 +1991,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                 map_nb = gr.Checkbox(value=True, label="Show top-K neighbours")
                 map_k = gr.Slider(3, 20, value=10, step=1, label="K", scale=1)
                 map_btn = gr.Button("Update", variant="primary", scale=1)
-            map_plot = gr.Plot(value=_INIT_UMAP, label="UMAP")
+            map_plot = gr.Plot(label="UMAP")
             map_btn.click(umap_view, inputs=[map_sib, map_basket, map_nb, map_k, map_3d], outputs=map_plot,
                           show_progress="minimal")
 
@@ -2092,11 +2092,11 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                         pp_btn = gr.Button("Generate passport", variant="primary")
                     with gr.Row():
                         with gr.Column(scale=3):
-                            pp_html = gr.HTML(value=render_passport_html("basil")[0])
+                            pp_html = gr.HTML(value="<div style='padding:20px;color:#64748b'>Pick an ingredient above and click <b>Generate passport</b>.</div>")
                         with gr.Column(scale=1):
                             gr.Markdown(f"<div style='color:{KAIKAKU_ACCENT};font-family:monospace;"
                                         f"font-size:0.78em;font-weight:700;letter-spacing:0.04em'>SENSORY RADAR</div>")
-                            pp_radar = gr.Plot(value=render_passport_html("basil")[1], label="")
+                            pp_radar = gr.Plot(label="")
                     def _passport_outputs(name):
                         h, r = render_passport_html(name)
                         return h, r
@@ -2150,10 +2150,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                 atl_show_nb = gr.Checkbox(value=True, label="Show top-K neighbours")
                 atl_k = gr.Slider(3, 20, value=8, step=1, label="K")
                 atl_btn = gr.Button("Update", variant="primary")
-            atl_plot = gr.Plot(
-                value=render_3d_atlas("chem", ["miso","basil","chocolate","tomato"], True, 8, "food group"),
-                label="",
-            )
+            atl_plot = gr.Plot(label="")
             atl_btn.click(render_3d_atlas,
                           inputs=[atl_sib, atl_basket, atl_show_nb, atl_k, atl_color],
                           outputs=atl_plot, show_progress="minimal")
@@ -2203,7 +2200,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                                                 value=_fp_default,
                                                 label="Factor (preview of mode labels shown)", scale=3)
                         fp_btn = gr.Button("Render", variant="primary", scale=1)
-                    fp_plot = gr.Plot(label="", value=render_factor_poster("chem", _fp_default))
+                    fp_plot = gr.Plot(label="")
                     fp_btn.click(render_factor_poster, inputs=[fp_sib, fp_factor], outputs=fp_plot, show_progress="full")
                     def _refresh_factor_choices(s):
                         choices = factor_options(s)
@@ -2218,7 +2215,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                         cc_ings = gr.Dropdown(choices=ALL_INGREDIENTS, value=["miso","basil","cumin"],
                                               label="Ingredients (1-5 polygons)", multiselect=True, max_choices=5)
                         cc_btn = gr.Button("Render", variant="primary")
-                    cc_plot = gr.Plot(label="", value=render_cuisine_compass("chem", ["miso","basil","cumin"]))
+                    cc_plot = gr.Plot(label="")
                     cc_btn.click(render_cuisine_compass, inputs=[cc_sib, cc_ings], outputs=cc_plot, show_progress="minimal")
 
                 # --- Arithmetic vector art ---
@@ -2228,7 +2225,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                         va_pos = gr.Dropdown(choices=ALL_INGREDIENTS, value=["miso"], label="Positives", multiselect=True, max_choices=5)
                         va_neg = gr.Dropdown(choices=ALL_INGREDIENTS, value=["salt"], label="Negatives", multiselect=True, max_choices=5)
                         va_btn = gr.Button("Render", variant="primary")
-                    va_plot = gr.Plot(label="", value=render_arithmetic_vector("core", ["miso"], ["salt"]))
+                    va_plot = gr.Plot(label="")
                     va_btn.click(render_arithmetic_vector, inputs=[va_sib, va_pos, va_neg], outputs=va_plot, show_progress="full")
 
                 # --- Cuisine phylogeny ---
@@ -2236,7 +2233,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                     with gr.Row():
                         ph_sib = gr.Radio(choices=["cooc","core","chem"], value="chem", label="Sibling")
                         ph_btn = gr.Button("Render", variant="primary")
-                    ph_plot = gr.Plot(label="", value=render_cuisine_phylogeny("chem"))
+                    ph_plot = gr.Plot(label="")
                     ph_btn.click(render_cuisine_phylogeny, inputs=[ph_sib], outputs=ph_plot, show_progress="minimal")
 
                 # --- Cuisine cosine map ---
@@ -2244,7 +2241,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                     with gr.Row():
                         cm_sib = gr.Radio(choices=["cooc","core","chem"], value="chem", label="Sibling")
                         cm_btn = gr.Button("Render", variant="primary")
-                    cm_plot = gr.Plot(label="", value=render_cuisine_cosine_map("chem"))
+                    cm_plot = gr.Plot(label="")
                     cm_btn.click(render_cuisine_cosine_map, inputs=[cm_sib], outputs=cm_plot, show_progress="minimal")
 
                 # --- SLERP trajectory ---
@@ -2256,7 +2253,7 @@ Three sibling ingredient embeddings from [arXiv:2605.22391](https://arxiv.org/ab
                                              value="cuisine:South_Asian", label="Direction")
                         st_max = gr.Slider(15, 90, value=60, step=15, label="Max θ (deg)")
                         st_btn = gr.Button("Render", variant="primary")
-                    st_plot = gr.Plot(label="", value=render_slerp_trajectory("chem", "rice", "cuisine:South_Asian", 60))
+                    st_plot = gr.Plot(label="")
                     st_btn.click(render_slerp_trajectory, inputs=[st_sib, st_seed, st_dir, st_max], outputs=st_plot, show_progress="full")
                     st_sib.change(lambda s: gr.Dropdown(choices=_supervised_choices(s), value=None),
                                   inputs=st_sib, outputs=st_dir)