[Docs] Add blogs to mkdocs

[harishmohanraj]

Related issue number

Closes #1054

Checks

• I've included any doc changes needed for https://docs.ag2.ai/. See https://docs.ag2.ai/docs/contributor-guide/documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ There is a different number of reports uploaded between BASE (a66890c) and HEAD (2d50ca8). Click for more details.

HEAD has 1254 uploads less than BASE

Flag	BASE (a66890c)	HEAD (2d50ca8)
3.13	84	0
core-without-llm	14	1
ubuntu-latest	144	1
3.9	82	0
3.11	63	1
3.10	94	0
commsagent-discord	9	0
optional-deps	141	0
macos-latest	103	0
browser-use	7	0
commsagent-slack	9	0
commsagent-telegram	9	0
3.12	36	0
windows-latest	112	0
docs	6	0
graph-rag-falkor-db	6	0
crawl4ai	13	0
interop	13	0
interop-crewai	9	0
interop-langchain	9	0
interop-pydantic-ai	9	0
jupyter-executor	9	0
websockets	9	0
twilio	9	0
retrievechat	15	0
retrievechat-pgvector	10	0
retrievechat-mongodb	10	0
retrievechat-qdrant	14	0
agent-eval	1	0
anthropic	16	0
gpt-assistant-agent	3	0
llama-index-agent	3	0
cerebras	13	0
mistral	14	0
retrievechat-couchbase	3	0
gemini	15	0
together	14	0
ollama	14	0
websurfer	14	0
bedrock	14	0
lmm	4	0
swarm	14	0
cohere	15	0
groq	14	0
integration	12	0
teachable	4	0
core-llm	9	0
openai-realtime	1	0
falkordb	2	0
gemini-realtime	1	0
neo4j	2	0
deepseek	1	0
captainagent	1	0
autobuild	1	0
openai	1	0
long-context	3	0

Files with missing lines	Coverage Δ
autogen/agentchat/chat.py	73.24% <ø> (-16.57%)	⬇️
autogen/agentchat/conversable_agent.py	67.47% <100.00%> (-10.90%)	⬇️
autogen/oai/client.py	50.07% <ø> (-27.12%)	⬇️

... and 63 files with indirect coverage changes

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