Redesign two prompts for 314159 example + harden install.sh

- Replace the astronaut and nine-tailed-fox prompts with new designs
(tiny dragon in a teacup, violinist under cherry blossoms) and regenerate
the matching thumbnail tiles
- install.sh: bump pip retries/timeout to survive flaky large-wheel downloads
(previous deploy hit IncompleteRead on a CUDA wheel and crashed startup)

app.py

@@ -109,9 +109,9 @@ PRESET_TEMPLATES = [
         "style_code": 314159,
         "seed": 42,
         "prompts": [
-            "A young astronaut removing her helmet on an alien meadow of luminous blue flowers, two distant moons reflected on her visor, wonder in her eyes.",
+            "A tiny dragon curled up asleep inside a glowing teacup on a wooden table, wisps of steam and soft candlelight around it, cozy and whimsical.",
             "A lone lighthouse on a rugged cliff against a stormy sea at dusk, towering waves crashing below, dramatic dark clouds split by a single beam of golden light.",
-            "A majestic nine-tailed fox spirit sitting gracefully atop an ancient mossy shrine gate, glowing fireflies drifting around it under a deep starry twilight sky.",
+            "A street musician playing violin under a blooming cherry blossom tree at golden hour, pink petals swirling in the breeze, warm sunlight filtering through.",
             "A cozy little ramen shop in a rainy neon-lit Tokyo alley at night, steam rising from a bowl on the counter, warm paper lanterns reflected in the puddles."
         ]
     },

install.sh

@@ -1,6 +1,12 @@
 #!/bin/bash
 set -e
 
+# Make pip downloads more resilient: the large CUDA/torch wheels (hundreds of MB)
+# occasionally get cut off mid-stream on the build network (IncompleteRead),
+# which fails the whole startup. Retry harder and allow a longer read timeout.
+export PIP_DEFAULT_TIMEOUT=120
+export PIP_RETRIES=10
+
 # --- Build prerequisites -----------------------------------------------------
 # setuptools 82 (released 2026-02-08) removed the legacy `pkg_resources` module,
 # which breaks the source builds of mmcv / mmgen (their setup.py still imports