chore(langchain_v1): clean anything uncertain

[eyurtsev]

Further clean up of namespace:

• Removed prompts (we'll re-add in a separate commit)
• Remove LocalFileStore until we can review whether all the implementation details are necessary
• Remove message processing logic from memory (we'll figure out where to expose it)
• Remove Tool primitive (should be sufficient to use BaseTool for typing purposes)
• Remove utilities to create kv stores. Unclear if they've had much usage outside MultiparentRetriever

[vercel]

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
langchain	⬜️ Ignored (Inspect)	Visit Preview		Jul 24, 2025 2:29pm

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #32228 will not alter performance

_{Comparing eugene/clean_up (2d1e1a6) with master (71ad451)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 13 untouched benchmarks

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #32228 will not alter performance

_{Comparing eugene/clean_up (110df1c) with master (71ad451)}

Summary

✅ 14 untouched benchmarks