[backend/client] handle file markings input as standard ids in file upload (#11643)

[JeremyCloarec]

Proposed changes

• handle file markings input as standard ids in file upload
• add file markings in all entities fragment in pycti to have it available during export
• add file markings handling during export in opencti_stix2

Related issues

• [ExportFileStix] no marking on attachement (x_opencti_files) #11643

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

❌ Patch coverage is 58.33333% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.10%. Comparing base (d715d2f) to head (81dc57e).
⚠️ Report is 9 commits behind head on master.

Files with missing lines	Patch %	Lines
client-python/pycti/utils/opencti_stix2.py	0.00%	9 Missing ⚠️
...encti-platform/opencti-graphql/src/utils/access.ts	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12666      +/-   ##
==========================================
+ Coverage   32.09%   32.10%   +0.01%     
==========================================
  Files        3006     3006              
  Lines      205955   205971      +16     
  Branches    37643    37656      +13     
==========================================
+ Hits        66092    66122      +30     
+ Misses     139863   139849      -14     

Flag	Coverage Δ
opencti-client-python	45.27% <0.00%> (-0.04%)	⬇️
opencti-front	2.49% <ø> (+<0.01%)	⬆️
opencti-graphql	68.62% <93.33%> (+0.02%)	⬆️

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[Copilot]

Pull request overview

This PR standardizes file marking handling to use internal IDs instead of standard IDs during file upload operations. The changes ensure that file markings are consistently stored as internal IDs in the backend, while also enabling proper marking export in the Python client by adding marking metadata to GraphQL queries and processing it in the STIX2 export logic.

• Backend now normalizes file marking inputs to internal IDs before validation and storage
• Python client GraphQL queries updated to include file marking metadata across all entity types
• STIX2 export now properly constructs marking-definition objects for file markings

Reviewed changes

Copilot reviewed 41 out of 41 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
opencti-platform/opencti-graphql/src/database/file-storage.ts	Normalizes file_markings input to internal IDs and passes markings cache to validation
opencti-platform/opencti-graphql/src/utils/access.ts	Adds optional markingsMap parameter to validateMarking to avoid redundant cache lookups
opencti-platform/opencti-graphql/tests/03-integration/01-database/file-storage-test.js	Updates test to verify file markings are stored as internal IDs
opencti-platform/opencti-graphql/tests/03-integration/01-database/file-storage-helper-test.ts	Updates test expectations to compare against internal IDs
client-python/pycti/utils/opencti_stix2.py	Adds logic to construct marking-definition objects from file markings during export
client-python/pycti/entities/*.py	Adds objectMarking fragment to all entity GraphQL queries to fetch file marking metadata

[esrevi]

tested on local, files have markings