fix/3216 regression for proxy config from v2 to v3

[abhishekp-bruno]

JIRA link - https://usebruno.atlassian.net/browse/BRU-3216

Description

Proxy settings were not being imported properly from JSON export file created with v2 and imported into v3.
Currently yaml import method works but the bru method still fails to import a collection.

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Summary by CodeRabbit

Release Notes

• Chores
  • Improved proxy configuration handling during collection import and initialization for better consistency in configuration processing.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 3ce97dac-2db1-4b1c-9707-f5ef12e4bafb

📥 Commits

Reviewing files that changed from the base of the PR and between 6b7e5f3 and 92d73db.

📒 Files selected for processing (1)

• packages/bruno-electron/src/ipc/collection.js

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Walkthrough

The PR integrates a proxy configuration transformation utility into the Electron collection initialization flow. It imports transformProxyConfig from @usebruno/requests and applies it to the default brunoConfig.proxy during collection import, ensuring proxy settings are normalized before use.

Proxy Config Transformation on Collection Import

Layer / File(s)	Summary
Proxy config transformation integration packages/bruno-electron/src/ipc/collection.js	Imports transformProxyConfig and applies it to normalize brunoConfig.proxy when building the default config during collection initialization.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• usebruno/bruno#6846: Applies the same transformProxyConfig helper in the CLI request runner for consistent proxy configuration normalization across environments.

Suggested labels

size/M

Suggested reviewers

• lohit-bruno
• naman-bruno
• bijin-bruno
• helloanoop

Poem

🔧 A proxy walks in, transformed and bright,
Configuration flows clean through the night,
Electron and CLI now sing in tune,
Normalization complete—not a moment too soon! 🎵

🚥 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 accurately describes the main change: fixing a regression where proxy configuration wasn't being imported from v2 JSON exports into v3.
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.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[sanish-bruno]

Please verify if we needed to add this anywhere else, also we need to have a playwright test case teh verifies that the proxy is successfully imported