fix(marker): fix markArea position alignment when axis is inverse

[Raman-Katiyar]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Fixes the markArea positioning alignment bug when xAxis or yAxis category axis is set to inverse: true by refactoring the core to use axis.dataToCoord.

Fixed issues

Details

Before: What was the problem?

When inverse: true is set on category axes, the markArea bounding box misaligns or breaks completely because the old code hardcoded a manual index increment (targetTickId += 1) and a sequential coordinate scanning loop that assumed strictly ascending ticks.

After: How does it behave after the fixing?

The manual loops and hardcoded index shifting were refactored to use ECharts' core axis.dataToCoord mechanism. It seamlessly resolves the bounding coordinates for both regular and inverse category axis configurations accurately, keeping the markArea perfectly aligned.

Document Info

One of the following should be checked.

• This PR doesn't relate to document changes
• The document should be updated later
• The document changes have been made in apache/echarts-doc#xxx

Misc

Security Checking

• This PR uses security-sensitive Web APIs.

ZRender Changes

• This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

N.A.

Merging options

• Please squash the commits into a single one when merging.

Other information

[echarts-bot]

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