Updating the FieldMappers to insert call addField of DocumentInput

[darjisagar7]

Description

[Describe what this change achieves]

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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❌ Gradle check result for 7f26163: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

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PR Code Analyzer ❗

AI-powered 'Code-Diff-Analyzer' found issues on commit 80f72cd.

Path	Line	Severity	Description
modules/parent-join/src/main/java/org/opensearch/join/mapper/ParentJoinFieldMapper.java	430	low	The `context.path().remove()` call is omitted from the pluggable-dataformat branch. In the original code this cleanup was always executed after adding fields, but in the refactored block it only runs in the legacy `else` path. When the feature is enabled, the path state is not cleaned up, which could cause subtle document-parsing state corruption. This appears to be an unintentional omission rather than malicious, but is worth investigation.

The table above displays the top 10 most important findings.

Total: 1 | Critical: 0 | High: 0 | Medium: 0 | Low: 1

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✅ Gradle check result for 93426fa: SUCCESS

[codecov]

Codecov Report

❌ Patch coverage is 81.75182% with 25 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.13%. Comparing base (aeed2c7) to head (2fc592f).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...h/index/mapper/ICUCollationKeywordFieldMapper.java	55.55%	1 Missing and 3 partials ⚠️
.../opensearch/index/mapper/size/SizeFieldMapper.java	0.00%	3 Missing ⚠️
.../org/opensearch/index/mapper/RangeFieldMapper.java	40.00%	1 Missing and 2 partials ⚠️
...earch/index/mapper/SearchAsYouTypeFieldMapper.java	75.00%	1 Missing and 1 partial ⚠️
...rg/opensearch/join/mapper/ParentIdFieldMapper.java	60.00%	1 Missing and 1 partial ⚠️
.../opensearch/join/mapper/ParentJoinFieldMapper.java	60.00%	1 Missing and 1 partial ⚠️
.../java/org/opensearch/index/mapper/FieldMapper.java	75.00%	1 Missing and 1 partial ⚠️
...pensearch/index/mapper/ScaledFloatFieldMapper.java	87.50%	0 Missing and 1 partial ⚠️
...rg/opensearch/index/mapper/BooleanFieldMapper.java	88.88%	0 Missing and 1 partial ⚠️
...a/org/opensearch/index/mapper/DateFieldMapper.java	91.66%	0 Missing and 1 partial ⚠️
... and 4 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #21001      +/-   ##
============================================
- Coverage     73.22%   73.13%   -0.09%     
+ Complexity    72601    72565      -36     
============================================
  Files          5848     5848              
  Lines        331970   332035      +65     
  Branches      47948    47968      +20     
============================================
- Hits         243075   242848     -227     
- Misses        69390    69733     +343     
+ Partials      19505    19454      -51     

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✅ Gradle check result for 2fc592f: SUCCESS