fix: ensure supportedVersions cache is created with secure permissions (0600)

[Nitinref]

This PR fixes incorrect permission mode for the supportedVersions ElectronStore cache file.

The file was created with default permissions (~644), which caused permission errors when reading the cache in some environments.
This fix sets fileMode: 0o600 so the cache is readable and writable only by the current user.

Tested on Windows and WSL — the cache file is now created with 600 permissions.

Screenshot:

Closes #3147

Summary by CodeRabbit

• Bug Fixes

  • Improved error messaging and diagnostic logging to help users identify and troubleshoot issues more effectively.

• Chores

  • Internal configuration optimizations and refined error handling mechanisms for enhanced security and reliability.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[CLAassistant]

All committers have signed the CLA.

[coderabbitai]

Walkthrough

Modifies ElectronStore initialization to set file permissions to 0o600 (read/write only for owner) instead of the default permissive mode, addressing a security issue. Also restructures error logging in the request handler with explicit branches for different error types.

Changes

Cohort / File(s)	Summary
ElectronStore Configuration & Error Logging src/servers/supportedVersions/main.ts	Introduces MyStoreOptions interface and sets fileMode: 0o600 on ElectronStore initialization for restrictive file permissions. Refactors logRequestError with explicit branching: logs error.message for AxiosErrors without response, and updates non-AxiosError logging pattern with literal error description string.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

• Single-file change with straightforward configuration and logging updates
• No complex logic, control flow changes, or multi-component interactions
• Security fix follows standard permission-setting pattern
• Error logging improvements are incremental and isolated

Poem

🐰 A rabbit hops through the config, so fine,
Setting permissions to 0o600 in a line,
No more world-writable woes,
Secure file modes the whole tunnel knows! 🔐✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Out of Scope Changes check	⚠️ Warning	The PR includes modifications to error handling in logRequestError function that are unrelated to the permission fix objective from issue #3147.	Remove the error handling changes to logRequestError; keep only the supportedVersions cache permission fix required to resolve issue #3147.

✅ Passed checks (4 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 the supportedVersions cache file permissions to use secure mode (0600).
Linked Issues check	✅ Passed	The PR changes set fileMode to 0o600 for supportedVersions ElectronStore, directly addressing issue #3147's requirement for secure file permissions.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[Nitinref]

I have created a pull request to fix this issue: #3148.
The PR adds secure file permissions (0600) to the supportedVersions cache so it is only readable/writable by the current user.
Tested on Windows and WSL.
Please review when possible. 🙂

[coderabbitai]

Actionable comments posted: 2

📜 Review details

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Plan: Pro

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📥 Commits

Reviewing files that changed from the base of the PR and between 4663dcc and 9c77cd0.

📒 Files selected for processing (1)

• src/servers/supportedVersions/main.ts (2 hunks)

🧰 Additional context used

📓 Path-based instructions (1)

**/*.{ts,tsx}

📄 CodeRabbit inference engine (CLAUDE.md)

**/*.{ts,tsx}: Follow existing TypeScript patterns with strict mode enabled
All new code must pass ESLint and TypeScript checks
Avoid unnecessary comments; only add comments for complex logic or non-obvious decisions

Files:

• src/servers/supportedVersions/main.ts

🧬 Code graph analysis (1)

src/servers/supportedVersions/main.ts (1)

src/servers/supportedVersions/types.ts (1)

• SupportedVersions (33-45)

🪛 ESLint

src/servers/supportedVersions/main.ts

[error] 51-51: Insert {

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[error] 52-52: Replace ·{·[key:·string]:·SupportedVersions·} with ·[key:·string]:·SupportedVersions;

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[error] 57-59: Replace ··}·as·unknown·as·MyStoreOptions⏎);⏎ with }·as·unknown·as·MyStoreOptions);

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