Stabilize local dev merge

Align regression tests with the current Odysseus behavior after merging origin/dev into local main.

- keep phone/name-only contacts valid and cover null email without crashes

- pin explicit web-search false form submission in chat.js

- update Cookbook dependency/download completion tests for combined live + persisted output

- expose SGLang OS package repair hints from backend diagnosis

- treat MLX and MLX-community repos as servable on Apple Metal while keeping CUDA behavior unchanged

- keep desktop new-chat coverage on the shared preferred-model helper

- remove a hardcoded crop overlay portal z-index literal

- include the local agent-loop cleanup that removes the old manage_notes reminder repair shim

Verified with: docker run --rm -v /home/pewds/odysseus-cookbook-fresh:/app -w /app odysseus-cookbook-fresh-odysseus python3 -m pytest -q (4515 passed, 4 skipped).

tests/test_contacts_add_null_name.py

@@ -24,7 +24,11 @@ def _add_handler():
 def _stub_store(monkeypatch):
     created = []
     monkeypatch.setattr(cr, "_fetch_contacts", lambda *a, **k: [])
-    monkeypatch.setattr(cr, "_create_contact", lambda name, email: created.append((name, email)) or True)
+    monkeypatch.setattr(
+        cr,
+        "_create_contact",
+        lambda name, email="", address="", phones=None: created.append((name, email, address, phones or [])) or True,
+    )
     return created
 
 
@@ -33,10 +37,18 @@ def test_null_name_does_not_crash(_stub_store):
     result = asyncio.run(handler({"name": None, "email": "x@y.com"}, _admin="admin"))
     assert result["success"] is True
     # name fell back to the email local-part instead of crashing.
-    assert _stub_store == [("x", "x@y.com")]
+    assert _stub_store == [("x", "x@y.com", "", [])]
 
 
-def test_null_email_is_rejected_cleanly(_stub_store):
+def test_null_email_does_not_crash(_stub_store):
     handler = _add_handler()
     result = asyncio.run(handler({"name": "Bob", "email": None}, _admin="admin"))
-    assert result == {"success": False, "error": "Email required"}
+    assert result["success"] is True
+    assert _stub_store == [("Bob", "", "", [])]
+
+
+def test_phone_only_contact_is_allowed(_stub_store):
+    handler = _add_handler()
+    result = asyncio.run(handler({"name": "Bob", "email": None, "phone": "0805412 7841"}, _admin="admin"))
+    assert result["success"] is True
+    assert _stub_store == [("Bob", "", "", ["0805412 7841"])]