docs: move custom arm guide, remove vibed depth camera doc

[leshy]

Problem

adding_a_custom_arm.md was in docs/development/ but belongs with the manipulation docs (or code)

depth_camera_integration.md was horrible and vibed and is better to not have it at all then have it in this state.

No matching Linear issue

Solution

• Moved adding_a_custom_arm.md from docs/development/ to docs/capabilities/manipulation/
• Deleted docs/development/depth_camera_integration.md
• Fixed link in manipulation/readme.md to use relative path
• Removed broken link to depth_camera_integration.md from docs/development/README.md

Breaking Changes

None

How to Test

Verify links in the docs render correctly.

Contributor License Agreement

• I have read and approved the CLA.

[greptile-apps]

Greptile Summary

Reorganized documentation by moving the custom arm integration guide from docs/development/ to docs/capabilities/manipulation/ where it belongs alongside other manipulation documentation. Removed outdated depth camera integration guide and cleaned up broken references.

• Moved adding_a_custom_arm.md to appropriate location in manipulation docs
• Added "Adding a Custom Arm" section with relative link in manipulation/readme.md
• Removed broken link to deleted depth_camera_integration.md from development README
• Deleted outdated depth_camera_integration.md file

All changes are documentation-only with no impact on code functionality.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• This is a documentation-only PR that reorganizes files and updates links. No code changes, no breaking changes, and all links have been verified to be correct. The file move was done properly (rename, not copy), and all references have been cleaned up.
• No files require special attention

Important Files Changed

Filename	Overview
docs/capabilities/manipulation/adding_a_custom_arm.md	File moved from docs/development/ to better location in manipulation docs, no content changes
docs/capabilities/manipulation/readme.md	Added section with relative link to adding_a_custom_arm.md guide
docs/development/README.md	Removed broken link to deleted depth_camera_integration.md file
docs/development/depth_camera_integration.md	Outdated depth camera guide deleted (no longer needed)

_{Last reviewed commit: 5d45960}

[greptile-apps]

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