Changes since langchain==1.2.3

release: langchain 1.2.4 (#34755) chore(langchain): add agent name metadata (#34743) chore: update twitter URLs (#34736) chore: add tests for private state attr use (really, lack thereof) (#34725) docs(langchain): clarify model ID usage for reliable behavior (#34718) fix(langchain): tag messages generated from summarization (#34693) fix(langchain): activate test_return_direct_spec tests, fix types (#34565) chore(langchain): fix types in test_todo, test_tool_retry (#34503) chore(langchain): fix types in test_shell_tool (#34502) chore(langchain): activate mypy warn_return_any rule (#34549) chore(langchain): fix types in test_tool_selection and test_tool_emulator (#34499) chore(langchain): fix types in test_shell_execution_policies (#34498) chore(langchain): improve ignore_missing_imports config (#34551) test(langchain): complete and activate test_responses tests (#34560) fix(langchain): activate mypy warn-unreachable (#34553) chore(langchain): fix types in test_injected_runtime_create_agent, test_create_agent_tool_validation (#34568) chore(langchain): fix types in and (#34571) chore(langchain): remove generic from (#34572) chore(langchain): fix types in , , (#34574) chore(langchain): fix types in (#34635) feat(langchain): add to (#34692) chore(langchain): fix types in (#34592) chore(langchain): fix types in (#34656) test(langchain): activate tests (#34564) style(langchain): fix some ruff preview rules (#34663) chore(langchain): fix types in (#34567) chore(langchain): fix types in , , and (#34636) chore(langchain): fix types in (#34634) style: bump ruff version to 0.14.11 (#34674) fix: remove relative imports (#34680) fix(langchain,langchain-classic): more descriptive error msg when dep is not installed (#34679) fix(langchain): infer provider from mixed-case prefixes (#34672) fix: add test confirming we don't inject args based on alone (#34677)