#352 | test(code-builder): add unit tests for collision detection

[xtroon]

Description

Adds unit tests for the collision detection logic in the code-builder module to cover:

• Core circle and rectangle overlap utilities (utils/index.ts)
• Brute force collision space implementation (Brute.ts)
• Quadtree-based collision space implementation (QuadTree.ts)

Related Issue

Closes #352

Verification

• Ran npx vitest run modules/code-builder and verified all 42 tests pass.
• Verified linter (npm run lint) passes.

[xtroon]

hi @meganindya, i have created a pull request to resolve issue #352. it adds the required white box unit tests for the collision detection module (utils, Brute, and QuadTree), please review it when you have time.

[parthdagia05]

refer to the comment #793