docs: fix broker IP typo in startup examples

[gaoxiaolei-s59]

Brief Description

Fix broker startup log examples that used 192.169.1.2 while the surrounding text describes the broker IP as 192.168.1.2.

This keeps the English and Chinese operation, deployment, and IDEA debugging docs consistent with the README examples.

How Did You Test This Change?

• git diff --check HEAD~1..HEAD
• rg -n "192\.169\.1\.2" docs/en docs/cn || true

Documentation-only change.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.96%. Comparing base (82a6a78) to head (2b478ef).

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #10440      +/-   ##
=============================================
- Coverage      48.05%   47.96%   -0.09%     
+ Complexity     13311    13282      -29     
=============================================
  Files           1377     1377              
  Lines         100632   100632              
  Branches       12995    12995              
=============================================
- Hits           48359    48272      -87     
- Misses         46351    46415      +64     
- Partials        5922     5945      +23     

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