feat & refactor: add search function feature to test scheduler on a modified locome benchmark, and slightly change the logic of query consume and query monitors

[tangg555]

Description

Summary: (summary)
Here's a concise description of the code changes:

Configuration Enhancements:

Added GraphDB connection parameters (URI, user, password, db_name, auto_create) across multiple scheduler initialization files

Scheduler Core Improvements:

Added current_mem_cube tracking in base scheduler

Refactored memory transformation with query keywords parameter

Removed deprecated initialize_working_memory_monitors method

Enhanced memory update logic with better error handling

Monitoring System Upgrades:

Restructured query monitors as nested dictionaries (user_id → mem_cube_id)

Implemented thread-safe registration with double-checked locking

Added detailed logging for threading operations

Improved memory monitor initialization logic

Search Functionality:

Added fine-grained search method (TreeTextMemory_FINE_SEARCH_METHOD)

Enhanced search with info parameter for history tracking

Improved search result handling in test scheduler

Prompt Engineering:

Refined retrieval decision framework prompts

Clarified output specifications for evidence tracking

Testing:

Removed obsolete test cases

Focused on core functionality validation

These changes improve thread safety, monitoring granularity, and search flexibility while maintaining backward compatibility.

Fix: #(issue)

Docs Issue/PR: (docs-issue-or-pr-link)

Reviewer: @(reviewer)

Checklist:

• I have performed a self-review of my own code | 我已自行检查了自己的代码
• I have commented my code in hard-to-understand areas | 我已在难以理解的地方对代码进行了注释
• I have added tests that prove my fix is effective or that my feature works | 我已添加测试以证明我的修复有效或功能正常
• I have created related documentation issue/PR in MemOS-Docs (if applicable) | 我已在 MemOS-Docs 中创建了相关的文档 issue/PR（如果适用）
• I have linked the issue to this PR (if applicable) | 我已将 issue 链接到此 PR（如果适用）
• I have mentioned the person who will review this PR | 我已提及将审查此 PR 的人