[ISSUE #10276] Fix PopConsumerService changeInvisibilityDuration losing CK record when visibilityTimeout collision

[qianye1001]

Which Issue(s) This PR Fixes

• Fixes [Bug] PopConsumerService changeInvisibilityDuration may lose CK record when visibilityTimeout collision #10276

Brief Description

In PopConsumerService.changeInvisibilityDuration, the RocksDB key is composed of visibilityTimeout + groupId + topicId + queueId + offset, where visibilityTimeout = popTime + invisibleTime.

When the new CK's changedPopTime + changedInvisibleTime equals the old CK's popTime + invisibleTime, both records produce the same RocksDB key. The current code first writes the new CK (which overwrites the old record at the same key), then deletes using the old CK's key — which inadvertently removes the newly written record, causing the message to never be retried.

Fix: Added a check before the delete operation. If the write was performed and the new CK has the same visibilityTimeout as the old one (same key), the delete is skipped since the write already replaced the old value in place.

How Did You Test This Change?

• Verified compilation passes successfully
• Verified no new lint or compilation errors in the modified file
• Logic analysis confirms correctness for all scenarios:
  1. Keys differ → write new CK + delete old CK (normal path)
  2. Keys same → write overwrites old record, skip delete (fix path)
  3. Group absent (skipWrite) → skip write + delete old CK (unchanged behavior)

[lizhimins]

这里和下面合并吧，别取反了

[codecov-commenter]

Codecov Report

❌ Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.87%. Comparing base (5ad6a3e) to head (aa5542c).

Files with missing lines	Patch %	Lines
...apache/rocketmq/broker/pop/PopConsumerService.java	60.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #10277      +/-   ##
=============================================
- Coverage      48.91%   48.87%   -0.05%     
+ Complexity     13455    13438      -17     
=============================================
  Files           1375     1375              
  Lines         100448   100450       +2     
  Branches       12971    12973       +2     
=============================================
- Hits           49137    49092      -45     
- Misses         45308    45345      +37     
- Partials        6003     6013      +10     

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