docs(code-runtime-python): clarify that the binding-all-names case is the fixture that rebinds the send names

The Testing sentence's subject attached the three rebinds to 'the fix' rather than
to the fixture that performs them; reword to 'pinned by a case that rebinds' and
mirror zh ('由一个…用例钉住'), re-recording the pairing.

.agents/notes/implemented/bug-fix/2026-07-31-code-runtime-python-settlement-fixes.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-31-code-runtime-python-settlement-fixes.md
-2026-07-31-code-runtime-python-settlement-fixes.md: 10c7af447f420370bc6cbd34c6cc9e3f9e11c2b0
-2026-07-31-code-runtime-python-settlement-fixes.zh.md: f3aef31505c91ebc0e703d50b8a37b9c138fd9a7
+2026-07-31-code-runtime-python-settlement-fixes.md: ce5670c3623e1670eaab07f7c68d2d56fff3d0c7
+2026-07-31-code-runtime-python-settlement-fixes.zh.md: 50d75498805f79b8d5ee0b370e0fa7a3ecc3da0f