fixed null handling for pos, parent_load_id and loan_type

[thomastomy5]

Summary by CodeRabbit

• Bug Fixes
  • Improved handling of image metadata when loan-related fields are missing, allowing clients to submit partial/blank values without validation errors.
  • Made metadata parsing more tolerant of nullable loan type, position, and parent-loan details.
• Other
  • Added stricter validation for loan_id in ad-hoc image uploads to reject blank/whitespace values.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 785e2169-d96d-422c-aa70-4d1fa76e7253

📥 Commits

Reviewing files that changed from the base of the PR and between 52f0357 and 339c87e.

📒 Files selected for processing (1)

• wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py

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📝 Walkthrough

Walkthrough

gold_image_request.py now uses Optional[...] annotations for several request fields, makes ImageMetadata.loan_id required, and adds blank-string validation for AdhocImageUploadRequest.loan_id.

Changes

Gold image request model updates

Layer / File(s)	Summary
Nullable Item fields wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py	Optional is imported, and Item scalar fields are annotated as nullable while keeping None defaults.
ImageMetadata annotations and loan_id requirement wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py	ImageMetadata fields are broadened to Optional[...] where applicable, and loan_id changes from a nullable default to a required string.
loan_id validators wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py	ImageMetadata retains its blank-check validator, and AdhocImageUploadRequest adds a blank-check validator for loan_id.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• rootflo/wavefront#205: Both PRs touch wavefront/.../gold_image_request.py’s Item model and related weight field typing.
• rootflo/wavefront#303: Adds and validates the same loan_type, pos, and parent_loan_id fields in gold_image_request.py.

Suggested reviewers: vizsatiz, vishnurk6247

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the main fix: null handling for pos and loan_type, and it’s clearly related despite the minor field-name typo.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

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• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/nullfix

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py`:
- Around line 37-39: The model annotations in gold_image_request.py use Optional
in the request fields, but the module only imports List and Literal, so it will
fail to load with a NameError. Update the typing imports at the top of the file
to include Optional, keeping the existing GoldImageRequest fields like
loan_type, pos, and parent_loan_id unchanged.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: c263d6ce-cf22-4dbe-ac61-542ce6b08fe5

📥 Commits

Reviewing files that changed from the base of the PR and between 21e191d and fc2e054.

📒 Files selected for processing (1)

• wavefront/server/modules/gold_module/gold_module/models/gold_image_request.py