Merge upstream/main into feat/sprites-sandbox

Conflict was uv.lock only — regenerated with `uv lock` against the merged
pyproject.toml so all extras (sprites + upstream's recent ones) lock
consistently. pyproject.toml auto-merged: our [sprites] extra and the
upstream 0.14.6→0.14.7 version bump and compaction changes coexist.

Verified: 725 sandbox+sprites tests pass, mypy/ruff clean repo-wide.

Author: vaurdan

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "openai-agents"
-version = "0.14.6"
+version = "0.14.7"
 description = "OpenAI Agents SDK"
 readme = "README.md"
 requires-python = ">=3.10"

src/agents/sandbox/capabilities/compaction.py

@@ -30,6 +30,9 @@ def _model_context_windows(models: tuple[str, ...], context_window: int) -> dict
             "gpt-5.4-pro",
             "gpt-5.4-pro-2026-03-05",
             "gpt-5.5",
+            "gpt-5.5-2026-04-23",
+            "gpt-5.5-pro",
+            "gpt-5.5-pro-2026-04-23",
             "gpt-4.1",
             "gpt-4.1-2025-04-14",
             "gpt-4.1-mini",

src/agents/sandbox/memory/phase_two.py

@@ -34,4 +34,4 @@ async def run_phase_two(
         selection=selection,
         extra_prompt=config.extra_prompt,
     )
-    await Runner.run(agent, prompt, run_config=run_config)
+    await Runner.run(agent, prompt, run_config=run_config, max_turns=500)

tests/sandbox/test_compaction.py

@@ -9,6 +9,9 @@
         ("gpt-5.4", 1_047_576),
         ("gpt-5.4-pro", 1_047_576),
         ("gpt-5.5", 1_047_576),
+        ("gpt-5.5-2026-04-23", 1_047_576),
+        ("gpt-5.5-pro", 1_047_576),
+        ("gpt-5.5-pro-2026-04-23", 1_047_576),
         ("gpt-5.3-codex", 400_000),
         ("gpt-5.4-mini", 400_000),
         ("gpt-4.1", 1_047_576),