Agentic memory

[rickyloynd-microsoft]

Adds a baseline implementation of agentic memory to the autogen-ext package.

For technical details, see the Agentic Memory README.

To see it in action, view the page logs generated while running the code samples.

In-progress:

• Unit tests
• Potential usage of autogen-core/memory

[ekzhu]

I haven't gone deep into the implementation logics, but I believe from just API level, we need to work on it to make sure it aligns with the rest of the framework. E.g., serializable configuration is already supported, and we should be using that. TaskRunner protocol is already there, and we should be using that. BaseChatAgent already provides an agent abstraction, and we should be using that as well.

[jackgerrits]

This PR is simply too large. Please propose your changes progressively and iteratively using a separate sequence of PRs. We cannot effectively review these changes as is.

[ekzhu]

@jackgerrits we will be refactoring this in the current branch first

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 925 lines in your changes missing coverage. Please review.

Project coverage is 70.97%. Comparing base (5c969d3) to head (6a04851).

Files with missing lines	Patch %	Lines
...-ext/src/autogen_ext/agentic_memory/page_logger.py	0.00%	250 Missing ⚠️
...en_ext/agentic_memory/agentic_memory_controller.py	0.00%	194 Missing ⚠️
...en-ext/src/autogen_ext/agentic_memory/_prompter.py	0.00%	116 Missing ⚠️
...n-ext/src/autogen_ext/agentic_memory/apprentice.py	0.00%	95 Missing ⚠️
...autogen_ext/agentic_memory/_agentic_memory_bank.py	0.00%	83 Missing ⚠️
...togen-ext/src/autogen_ext/agentic_memory/grader.py	0.00%	74 Missing ⚠️
...togen_ext/agentic_memory/_string_similarity_map.py	0.00%	64 Missing ⚠️
...togen-ext/src/autogen_ext/agentic_memory/_utils.py	0.00%	44 Missing ⚠️
...gen-ext/src/autogen_ext/agentic_memory/__init__.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5227      +/-   ##
==========================================
- Coverage   77.85%   70.97%   -6.89%     
==========================================
  Files         158      167       +9     
  Lines        9520    10445     +925     
==========================================
+ Hits         7412     7413       +1     
- Misses       2108     3032     +924     

Flag	Coverage Δ
unittests	70.97% <0.00%> (-6.89%)	⬇️

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