Merge main into trusted shell migration

Co-authored-by: OpenAI Codex <codex@openai.com>

.github/workflows/sync_to_hf.yml

@@ -67,4 +67,4 @@ jobs:
             sleep "$delay"
           done
           echo "Hugging Face push failed after 5 attempts." >&2
-          exit 1
+          exit 1

AGENTS.md

@@ -141,9 +141,8 @@ technical cutaway animation.
   to retry that final push with bounded backoff.
 - The next GitHub Actions sync run succeeded:
   `https://github.com/Bigstonks1/Snap2Sim/actions/runs/27487136019`.
-- Hugging Face Space `jasondo111/Snap2Sim` later reported SHA
-  `bfe49606478d6e922b0f973409fa3433f9d9ed9d`, matching GitHub `main`, after
-  the final handoff-note sync.
+- Hugging Face Space `jasondo111/Snap2Sim` reports SHA
+  `d70e374bea16acaa41c322942815d3cb213745f4`, matching GitHub `main`.
 - `PROMPT.md` was updated with a new critical path: `gradio.Server`,
   `index.html`, A-Frame model scene generation, `generate_scene` naming, and a
   deterministic Three.js fallback in browser JS.