🤖 Enhanced Error Handling and Validation in Checkout Process

[sentry-autofix]

👋 Hi there! This PR was automatically generated by Autofix 🤖

This fix was triggered by [email protected]

Fixes VUE-1H

The changes made in CheckoutView.vue and main.py improve checkout error handling and inventory validation. In CheckoutView.vue, the content type for checkout requests is changed to JSON, and the response handling has been updated to properly display specific error messages for insufficient inventory. The context for errors logged with Sentry includes details about the items in the cart and error specifics. In main.py, a check for empty carts is added, and a more detailed inventory validation process is implemented, which uses a dictionary for faster lookups. When inventory requests fail, relevant error information about missing products and their availability are returned to the client.

If you have any questions or feedback for the Sentry team about this fix, please email [email protected] with the Run ID: 1458.

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[sentry-io]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: flask/src/main.py

Function	Unhandled Issue
checkout	Exception: Not enough inventory for product checkout Event Count: 3.7k
checkout	DatabaseConnectionError: get_inventory checkout Event Count: 9
checkout	KeyError: 'form' checkout Event Count: 3
checkout	TypeError: list indices must be integers or slices, not str ... Event Count: 2

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 15 lines in your changes missing coverage. Please review.

Project coverage is 35.84%. Comparing base (75af4e6) to head (de35f06).

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
flask/src/main.py	0.00%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #631      +/-   ##
==========================================
- Coverage   36.21%   35.84%   -0.38%     
==========================================
  Files          37       37              
  Lines         867      876       +9     
  Branches      111      111              
==========================================
  Hits          314      314              
- Misses        536      545       +9     
  Partials       17       17              

Flag	Coverage Δ
api	7.42% <0.00%> (-0.20%)	⬇️
frontend	54.75% <ø> (ø)

Components	Coverage Δ
checkout_module	7.42% <0.00%> (-0.20%)	⬇️
product_component	56.41% <ø> (ø)

Files with missing lines	Coverage Δ
flask/src/main.py	0.00% <0.00%> (ø)

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