Fix minor docs issues

[kumaranvpl]

• Update temperature to 0.0 in examples
• Switch from gpt-4o-mini to gpt-4o in examples
• Include missing import in tutorial
• Fix debugging tips format
• Update notes syntax

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
examples/fixtures.py	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
docs/docs_src/getting_started/main_console.py	100.00% <ø> (+11.11%)	⬆️
docs/docs_src/getting_started/main_mesop.py	0.00% <ø> (ø)
...cs_src/user_guide/custom_user_interactions/main.py	62.50% <ø> (-31.25%)	⬇️
.../user_guide/custom_user_interactions/main_mesop.py	0.00% <ø> (ø)
...ocs/docs_src/user_guide/external_rest_apis/main.py	100.00% <ø> (ø)
...cs_src/user_guide/external_rest_apis/main_mesop.py	0.00% <ø> (ø)
...docs_src/user_guide/external_rest_apis/security.py	100.00% <ø> (ø)
docs/docs_src/user_guide/runtime/autogen/main.py	0.00% <ø> (ø)
examples/cli/main_console.py	0.00% <ø> (ø)
examples/cli/main_mesop.py	0.00% <ø> (ø)
... and 2 more